ErrorException: Fatal Error: Class 'XF\Search\Source\AbstractSource'

[Serpius]

My website has been getting a lot of these errors, but I have no clue on how to fix this error.

I just installed a new Xenforo website yesterday, October 28, 2019.

Aside from this error, the website seems to be running OK from what I can tell.

What can I do to fix this error? View the screenshot below.

 

[Paul B]

That error typically indicates a missing or corrupt file.

Try uploading the files again.

 

[Serpius]

That error typically indicates a missing or corrupt file.

Try uploading the files again.

Which ones? All of them?

If I upload all of the files, wouldn't that overwrite all of the work I have done up to this point?

 

[Paul B]

The php files have no impact on any changes you've made in the ACP.

 

[Serpius]

The php files have no impact on any changes you've made in the ACP.

Ok, good enough!

FYI, I'm not a coder/programmer, so I wasn't certain of the impact of uploading all new files.

Now, I know.