Hi John and Dan, thanks for the response.
I’ve attached a screenshot of the control panel home page.
Looking at the config.php file, it looks like extensions are enabled but the only one I see in the directory is “ext.file.php”. There are no browser errors that I can see, everything appears to be working correctly, they just don’t have the header buttons in the control panel.
I tested the hosting server, Liquid Web, for compatibility with EE 2. It says that the version of PHP is incompatible. Looks like the host is on version 4. Contacting tech support they did say that the client is on an older server. They do have newer servers that are compatible but the client is leery of moving things over until the issue is resolved.
I am not aware of any changes that the host may have done. I’ve confirmed that there is only one Super Admin account, the same account the client uses, and the same login credentials they provided me. Apparently, according to the client, they hired another developer to login and make some updates. What those updates were I don’t know. But, they said that the issue started occurring after the developer made the changes.
I’m entering this situation late in the game so I’m not really sure of all that has been done. I did a full backup of the files and database just in case. I’m not familiar with EE 1.5.0 and since it’s such an old version it’s more difficult to find relevant posts in the Forums or issues that may be similar.
I assume something must have been changed in a core file but I don’t have any older versions of EE to compare it to. The oldest version I’ve ever worked with is 1.6.2.
I’m also hesitant to do an upgrade without knowing the solution. Seems like going from 1.5.0 to 1.7.1 is a big jump.