Troubleshooting a Loaded English Language Files Error
Upon successfully completing the 7.5 update, when attempting to log in to the admin area for the first time, staff may encounter an unformatted page containing a message like this:
Starting Loaded English Language File Loaded Other Language Files Updated hungarian Updated russian Updated turkish Updated portugues-br ...
This message prevents access to WHMCS.
This is due to the presence of old language files unintentionally distributed in a v5.x release.
Delete the following files if present:
The files can be safely deleted without any negative impact and will immediately resolve the problem.