Fatal error: Class 'PopularTopics' not found in...Sources/MessageIndex.php on li

[mikehsg]

Fatal error: Class 'PopularTopics' not found in /home/MYSITE/public_html/forum/Sources/MessageIndex.php on line 537

Moved my forum from the root to a sub-folder. Now I'm getting the above error. I have not a blessed clue how to fix, but nothing works.

[mikehsg]

Bit more amplifying information:

1. Clicking the board title makes the error.
2. I can see the "Latest Posts" in the footer, and that works.
3. I can post by clicking directly into one of the threads.
4. Clicking a thread header works.

[mikehsg]

I have also optimized and repaired all tables in MyPHP with no success.

Versions are as follows:

SMF Package  SMF 2.0.11  SMF 2.0.11 
Sources  2.0.11  2.0.11 

Admin.php  2.0  2.0 
Ads.php  ??  ?? 
BoardIndex.php  2.0  2.0 
BotScout.php  ??  ?? 
Calendar.php  2.0  2.0 
Class-Graphics.php  2.0  2.0 
Class-Package.php  2.0.8  2.0.8 
CustomPages.php  ??  ?? 
DbExtra-mysql.php  2.0  2.0 
DbExtra-postgresql.php  2.0  2.0 
DbExtra-sqlite.php  2.0  2.0 
DbPackages-mysql.php  2.0  2.0 
DbPackages-postgresql.php  2.0.10  2.0.10 
DbPackages-sqlite.php  2.0  2.0 
DbSearch-mysql.php  2.0  2.0 
DbSearch-postgresql.php  2.0.7  2.0.7 
DbSearch-sqlite.php  2.0.7  2.0.7 
Display.php  2.0.9  2.0.9 
DumpDatabase.php  2.0  2.0 
Errors.php  2.0.4  2.0.4 
Groups.php  2.0  2.0 
Help.php  2.0  2.0 
Karma.php  2.0  2.0 
Links.php  ??  ?? 
Load.php  2.0.11  2.0.11 
LoadAds.php  ??  ?? 
LockTopic.php  2.0  2.0 
LogInOut.php  2.0.11  2.0.11 
ManageAttachments.php  2.0.10  2.0.10 
ManageBans.php  2.0  2.0 
ManageBoards.php  2.0  2.0 
ManageCalendar.php  2.0  2.0 
ManageErrors.php  2.0.4  2.0.4 
ManageMail.php  2.0  2.0 
ManageMaintenance.php  2.0.7  2.0.7 
ManageMembergroups.php  2.0.7  2.0.7 
ManageMembers.php  2.0.11  2.0.11 
ManageNews.php  2.0.10  2.0.10 
ManagePages.php  ??  ?? 
ManagePaid.php  2.0.3  2.0.3 
ManagePermissions.php  2.0  2.0 
ManagePosts.php  2.0  2.0 
ManageRegistration.php  2.0  2.0 
ManageScheduledTasks.php  2.0  2.0 
ManageSearch.php  2.0  2.0 
ManageSearchEngines.php  2.0  2.0 
ManageServer.php  2.0.10  2.0.10 
ManageSettings.php  2.0.6  2.0.6 
ManageSmileys.php  2.0  2.0 
Memberlist.php  2.0.8  2.0.8 
MessageIndex.php  2.0.2  2.0.2 
ModSettings.php  ??  ?? 
ModerationCenter.php  2.0.1  2.0.1 
Modlog.php  2.0.11  2.0.11 
MoveTopic.php  2.0  2.0 
News.php  2.0.8  2.0.8 
Notify.php  2.0  2.0 
Ohara.php  1.0  ?? 
PackageGet.php  2.0.9  2.0.9 
Packages.php  2.0.11  2.0.11 
PersonalMessage.php  2.0.5  2.0.5 
Poll.php  2.0  2.0 
Post.php  2.0.10  2.0.10 
PostModeration.php  2.0  2.0 
Printpage.php  2.0  2.0 
Profile-Actions.php  2.0.6  2.0.6 
Profile-Modify.php  2.0.7  2.0.7 
Profile-View.php  2.0.5  2.0.5 
Profile.php  2.0.6  2.0.6 
QueryString.php  2.0.9  2.0.9 
Recent.php  2.0  2.0 
Register.php  2.0.7  2.0.7 
Reminder.php  2.0.4  2.0.4 
RemoveTopic.php  2.0  2.0 
RepairBoards.php  2.0  2.0 
Reports.php  2.0  2.0 
SSI.php  2.0.10  2.0.10 
ScheduledTasks.php  2.0.9  2.0.9 
Search.php  2.0.9  2.0.9 
SearchAPI-Custom.php  2.0  2.0 
SearchAPI-Fulltext.php  2.0  2.0 
SearchAPI-Standard.php  2.0  2.0 
Security.php  2.0.3  2.0.3 
SendTopic.php  2.0  2.0 
SplitTopics.php  2.0  2.0 
Stats.php  2.0  2.0 
Subs-Admin.php  2.0  2.0 
Subs-Auth.php  2.0.11  2.0.11 
Subs-BoardIndex.php  2.0  2.0 
Subs-Boards.php  2.0  2.0 
Subs-Calendar.php  2.0  2.0 
Subs-Categories.php  2.0  2.0 
Subs-Charset.php  2.0  2.0 
Subs-Compat.php  2.0  2.0 
Subs-CustomPages.php  ??  ?? 
Subs-Db-mysql.php  2.0.9  2.0.9 
Subs-Db-postgresql.php  2.0.4  2.0.4 
Subs-Db-sqlite.php  2.0  2.0 
Subs-Editor.php  2.0.11  2.0.11 
Subs-Graphics.php  2.0.9  2.0.9 
Subs-List.php  2.0  2.0 
Subs-Membergroups.php  2.0  2.0 
Subs-Members.php  2.0.7  2.0.7 
Subs-MembersOnline.php  2.0  2.0 
Subs-Menu.php  2.0.1  2.0.1 
Subs-MessageIndex.php  2.0  2.0 
Subs-OpenID.php  2.0.11  2.0.11 
Subs-Package.php  2.0.10  2.0.10 
Subs-PopularTopics.php  1.1   ?? 
Subs-Post.php  2.0.10  2.0.10 
Subs-Recent.php  2.0  2.0 
Subs-Sound.php  2.0  2.0 
Subs-UsersMassActions.php  ??  ?? 
Subs.php  2.0.11  2.0.11 
Subscriptions-PayPal.php  2.0.10  2.0.10 
TPSubs.php  ??  ?? 
TPcommon.php  ??  ?? 
TPdlmanager.php  ??  ?? 
TPgallery.php  ??  ?? 
TPhelp.php  ??  ?? 
TPlinkmanager.php  ??  ?? 
TPmodules.php  ??  ?? 
TPoptions.php  ??  ?? 
TPortal.php  ??  ?? 
TPortalAdmin.php  ??  ?? 
TPteampage.php  ??  ?? 
Themes.php  2.0.4  2.0.4 
ViewQuery.php  2.0  2.0 
Who.php  2.0.2  2.0.2 
Xml.php  2.0  2.0 
alexa.php  ??  ?? 
pagerank.php  ??  ?? 

Default Templates  2.0.10  2.0.10 

Admin.template.php  2.0  2.0 
Ads.template.php  ??  ?? 
BoardIndex.template.php  2.0  2.0 
Calendar.template.php  2.0  2.0 
Combat.template.php  ??  ?? 
Compat.template.php  2.0  2.0 
CustomPages.template.php  ??  ?? 
Display.template.php  2.0  2.0 
Errors.template.php  2.0  2.0 
GenericControls.template.php  2.0  2.0 
GenericList.template.php  2.0  2.0 
GenericMenu.template.php  2.0  2.0 
Help.template.php  2.0.6  2.0.6 
Links.template.php  ??  ?? 
Login.template.php  2.0  2.0 
ManageAttachments.template.php  2.0  2.0 
ManageBans.template.php  2.0  2.0 
ManageBoards.template.php  2.0  2.0 
ManageCalendar.template.php  2.0  2.0 
ManageMail.template.php  2.0  2.0 
ManageMaintenance.template.php  2.0  2.0 
ManageMembergroups.template.php  2.0  2.0 
ManageMembers.template.php  2.0  2.0 
ManageNews.template.php  2.0  2.0 
ManagePaid.template.php  2.0  2.0 
ManagePermissions.template.php  2.0.9  2.0.9 
ManageScheduledTasks.template.php  2.0  2.0 
ManageSearch.template.php  2.0  2.0 
ManageSmileys.template.php  2.0  2.0 
Memberlist.template.php  2.0  2.0 
MessageIndex.template.php  2.0  2.0 
ModerationCenter.template.php  2.0  2.0 
Modlog.template.php  ??  ?? 
MoveTopic.template.php  2.0  2.0 
Notify.template.php  2.0  2.0 
Packages.template.php  2.0  2.0 
PersonalMessage.template.php  2.0  2.0 
Poll.template.php  2.0  2.0 
Post.template.php  2.0.10  2.0.10 
Printpage.template.php  2.0  2.0 
Profile.template.php  2.0  2.0 
Recent.template.php  2.0  2.0 
Register.template.php  2.0  2.0 
Reminder.template.php  2.0  2.0 
Reports.template.php  2.0  2.0 
Search.template.php  2.0.10  2.0.10 
SendTopic.template.php  2.0  2.0 
Settings.template.php  2.0  2.0 
SplitTopics.template.php  2.0  2.0 
Stats.template.php  2.0  2.0 
TPBlockLayout.template.php  ??  ?? 
TPBlocks.template.php  ??  ?? 
TPShout.template.php  ??  ?? 
TPdladmin.template.php  ??  ?? 
TPdlmanager.template.php  ??  ?? 
TPgallery.template.php  ??  ?? 
TPgalleryAdmin.template.php  ??  ?? 
TPhelp.template.php  ??  ?? 
TPlinkAdmin.template.php  ??  ?? 
TPlinkmanager.template.php  ??  ?? 
TPmodules.template.php  ??  ?? 
TPortal.template.php  ??  ?? 
TPortalAdmin.template.php  ??  ?? 
TPortalBlocks.template.php  ??  ?? 
TPprint.template.php  ??  ?? 
TPprofile.template.php  ??  ?? 
TPsubs.template.php  ??  ?? 
TPteampage.template.php  ??  ?? 
TPwireless.template.php  ??  ?? 
Themes.template.php  2.0.7  2.0.7 
Who.template.php  2.0  2.0 
Wireless.template.php  2.0  2.0 
Xml.template.php  2.0  2.0 
index.template.php  2.0  2.0 

Language Files  2.0.10  2.0.10 

Admin.english.php  2.0  2.0 
Ads.english.php  ??  ?? 
EmailTemplates.english.php  2.0  2.0 
Errors.english.php  2.0  2.0 
Help.english.php  2.0  2.0 
Install.english.php  2.0  2.0 
Links.english.php  ??  ?? 
Login.english.php  2.0  2.0 
ManageBoards.english.php  2.0  2.0 
ManageCalendar.english.php  2.0  2.0 
ManageMail.english.php  2.0  2.0 
ManageMaintenance.english.php  2.0  2.0 
ManageMembers.english.php  2.0  2.0 
ManagePages.english.php  ??  ?? 
ManagePaid.english.php  2.0.10  2.0.10 
ManagePermissions.english.php  2.0  2.0 
ManageScheduledTasks.english.php  2.0  2.0 
ManageSettings.english.php  2.0  2.0 
ManageSmileys.english.php  2.0  2.0 
Manual.english.php  2.0  2.0 
ModSettings.english.php  1.1  ?? 
ModerationCenter.english.php  2.0  2.0 
Modifications.english.php  ??  2.0 
Modlog.english.php  2.0  2.0 
Packages.english.php  2.0  2.0 
PersonalMessage.english.php  2.0  2.0 
Post.english.php  2.0  2.0 
Profile.english.php  2.0  2.0 
Reports.english.php  2.0  2.0 
Search.english.php  2.0  2.0 
Settings.english.php  2.0  2.0 
Stats.english.php  2.0  2.0 
TPShout.english.php  TinyPortal 1.0  ?? 
TPdlmanager.english.php  TinyPortal 1.0  ?? 
TPgallery.english.php  ??  ?? 
TPhelp.english.php  TinyPortal 1.0  ?? 
TPmodules.english.php  TinyPortal 1.0  ?? 
TPortal.english.php  TinyPortal 1.0  ?? 
TPortalAdmin.english.php  TinyPortal 1.0  ?? 
Themes.english.php  2.0  2.0 
Who.english.php  2.0  2.0 
Wireless.english.php  2.0  2.0 
index.english.php  2.0.10  2.0.10 
Links.english-utf8.php  ??  ?? 
TPShout.english-utf8.php  TinyPortal 1.0  ?? 
TPdlmanager.english-utf8.php  TinyPortal 1.0  ?? 
TPgallery.english-utf8.php  ??  ?? 
TPhelp.english-utf8.php  TinyPortal 1.0  ?? 
TPmodules.english-utf8.php  TinyPortal 1.0  ?? 
TPortal.english-utf8.php  TinyPortal 1.0  ?? 
TPortalAdmin.english-utf8.php  TinyPortal 1.0  ?? 
index.finnish.php  ??  2.0.10 

Current Templates  2.0  2.0 

Settings.template.php  ??  2.0 
index.template.php  2.0  2.0 

[Kindred]

when you moved it, did you then run repair_settings.php?

I think populartopics is not a standard SMF class - which suggests that you have a misconfigured mod

[mikehsg]

@Kindred - That was it. Reinstalled that mod, all is good with the world!

And yes, I did run the repair tool - worked like a champ!

Thank you so much! That saved me HOURS of hand-wringing and headaches!