2.0.19 problem - Fatal/Uncaught Error

[gloudiesaurus]

My forum (gppits.net/forum) stopped working, I got the following errors:

Fatal error: Uncaught Error: Call to undefined function mysql_query() in /home/gppitsnet/domains/gppits.net/public_html/forum/Sources/Load.php(2272) : eval()'d code:296 Stack trace: #0 /home/gppitsnet/domains/gppits.net/public_html/forum/Sources/Load.php(1984): template_body_above() #1 /home/gppitsnet/domains/gppits.net/public_html/forum/Sources/Subs.php(3455): loadSubTemplate('body_above', true) #2 /home/gppitsnet/domains/gppits.net/public_html/forum/Sources/Subs.php(2900): template_header() #3 /home/gppitsnet/domains/gppits.net/public_html/forum/Sources/Errors.php(337): obExit(NULL, true, false, true) #4 /home/gppitsnet/domains/gppits.net/public_html/forum/Sources/Errors.php(161): setup_fatal_error_context('Call to undefin...') #5 /home/gppitsnet/domains/gppits.net/public_html/forum/index.php(132): fatal_error('Call to undefin...', 'critical') #6 [internal function]: {closure}(Object(Error)) #7 {main} thrown in /home/gppitsnet/domains/gppits.net/public_html/forum/Sources/Load.php(2272) : eval()'d code on line 296

How can I fix this?

[gloudiesaurus]

Hosting runs PHP 7.4

[Kindred]

What version of smf?

Edit-  DOH! Just realized the op included the version in the title

[Doug Heffernan]

My forum (gppits.net/forum) stopped working, I got the following errors:

What was the latest change/modification that was done to the forum prior to this happening?

If you are not already using smf 2.0.19, upgrade to it and see if that would help.

[shawnb61]

That looks like a mysql support issue.  Note it's mysql_query, not mysqli_query. 

I would have the host confirm mysqli is enabled.  Support for mysql (no i) ended in ~php7.

Running phpinfo should tell you if mysqli is enabled also.

[gloudiesaurus]

That looks like a mysql support issue.  Note it's mysql_query, not mysqli_query. 

I would have the host confirm mysqli is enabled.  Support for mysql (no i) ended in ~php7.

Running phpinfo should tell you if mysqli is enabled also.

Info from phpinfo:
Configure Command   './configure' '--enable-embed' '--prefix=/usr/local/php74' '--program-suffix=74' '--enable-fpm' '--with-fpm-systemd' '--enable-litespeed' '--with-config-file-scan-dir=/usr/local/php74/lib/php.conf.d' '--with-curl' '--enable-gd' '--with-gettext' '--with-jpeg' '--with-freetype' '--with-kerberos' '--with-openssl' '--with-mhash' '--with-mysql-sock=/var/lib/mysql/mysql.sock' '--with-mysqli=mysqlnd' '--with-pdo-mysql=mysqlnd' '--with-pear' '--with-sodium=/usr/local' '--with-webp' '--with-xsl' '--with-zlib' '--with-zip' '--with-iconv=/usr/local' '--enable-bcmath' '--enable-calendar' '--enable-exif' '--enable-ftp' '--enable-sockets' '--enable-soap' '--enable-mbstring' '--enable-intl' 'PKG_CONFIG_PATH=/usr/local/icu/lib/pkgconfig:/usr/local/lib64/pkgconfig:/usr/local/lib/pkgconfig:/usr/lib/x86_64-linux-gnu/pkgconfig'
Server API   FPM/FastCGI
Virtual Directory Support   disabled
Configuration File (php.ini) Path   /usr/local/php74/lib
Loaded Configuration File   /usr/local/php74/lib/php.ini
Scan this dir for additional .ini files   /usr/local/php74/lib/php.conf.d
Additional .ini files parsed   /usr/local/php74/lib/php.conf.d/10-directadmin.ini, /usr/local/php74/lib/php.conf.d/50-webapps.ini
PHP API   20190902
PHP Extension   20190902
Zend Extension   320190902
Zend Extension Build   API320190902,NTS
PHP Extension Build   API20190902,NTS
Debug Build   no
Thread Safety   disabled
Zend Signal Handling   enabled
Zend Memory Manager   enabled
Zend Multibyte Support   provided by mbstring
IPv6 Support   enabled
DTrace Support   disabled
Registered PHP Streams   https, ftps, compress.zlib, php, file, glob, data, http, ftp, phar, zip
Registered Stream Socket Transports   tcp, udp, unix, udg, ssl, sslv3, tls, tlsv1.0, tlsv1.1, tlsv1.2
Registered Stream Filters   zlib.*, convert.iconv.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk

[gloudiesaurus]

Maybe upgrading to version 2.1.2 will help?

I'm running 2.0.19 now.

[GL700Wing]

Maybe upgrading to version 2.1.2 will help?

I'm running 2.0.19 now.

I'd recommend that you get SMF 2.0.19 working properly and reliably before you attempt any upgrade ...

[gloudiesaurus]

Maybe upgrading to version 2.1.2 will help?

I'm running 2.0.19 now.

I'd recommend that you get SMF 2.0.19 working properly and reliably before you attempt any upgrade ...

But the reason that it won't work is maybe because my hosting runs PHP 7.4 now?

[Doug Heffernan]

But the reason that it won't work is maybe because my hosting runs PHP 7.4 now?

Smf 2.0.19 works fine with php 7.4.

[GL700Wing]

But the reason that it won't work is maybe because my hosting runs PHP 7.4 now?

All my SMF 2.0.19 forums are working perfectly with PHP 7.4 - you have some other issue.

[Doug Heffernan]

My forum (gppits.net/forum) stopped working....

What was the latest change/modification that was done to the forum prior to this happening?

Additionally, can you refresh all your forum files with those from the large 2.0.19 upgrade package, without the upgrade files? Note that doing so it will uninstall all the mods that you have, and undo any manual changes to the files. If you have edited files manually, back them up first.

Then see if the error will go away. This is to see if a third party mod is causing this.

[Steve]

As the OP was here 3 days after Doug's post and didn't respond, I'm assuming this is no longer an issue and marking it solved.

And @gloudiesaurus - in future, please make your topic titles indicate the nature of your problem.