Problem with frequent error -- do I have a security situation?

[pepf]

 Several times a day the forum shows error messages like the one below:

<quote>
Guest
 196.xx.xx.xx
 3647e157cce338675055f21611ce40b1
 https://xxxxxx.com/forum/index.php?action=register  Backtrace information

Type of error: Template
Error messageSelect
Unable to load the 'main' template.
<unquote>

Is this from bots trying to register?
Checking the IPs found that they are from different places like South Africa, China, USA.
Sometimes it is only a few seconds until a retry from the same IP occurs, sometimes a few minutes.
None of these have successfully registered, that is why I suspect that it is a bot abandoning the try and doing another one just shortly after.

What is the 'main' template? Shall I just ignore the whole thing? These errors started suddenly and are usually within about ten or a dozen a day. It may have started after I had to unblock registration via VPN access for legitimate users.

[@rjen]

Let me guess, using Optimus, latest beta version?

That is a non existent action that would normally not log an error.

[pepf]

Thanks for answering.
Optimus is given as version 2.11, but there is a problem with the package installation. I had it installed and later tried to remove it. It did not work...now it sits there with a button for listing the files and one for deleting it, but none to Install or Uninstall. I did not dare deleting it fearing that something unrelated might break.

[Steve]

Mod questions will need to be asked in the mod's support topic: https://www.simplemachines.org/community/index.php?topic=422210.0

[pepf]

Thanks, did do that. But the problem with the registration error "main" template persists. Perhaps not related to that mod as it (the mod) was installed long before the problem started.

[pepf]

I just reinstalled the VPN blocking mod as there was again a number of registration tries since yesterday. If they cease, then it will probably be clear what caused the error.

[pepf]

Still getting the error messages after reinstalling VPN blocker mod.

[Kindred]

Then it seems that the VPN blocker mod is the problem.   Ask the author for assistance in the thread dedicated to supporting that mod