It seems the program can't upload an image (I have a number of other sites where "site" file uploading is not an issue) and the only way to manually add an avatar is to edit the database.
Mibew uses standard
move_uploaded_file function to handle uploaded avatar. Maybe there are some reasons why uploaded avatar cannot be moved...
Probably you can try to change
@move_uploaded_file with the
move_uploaded_file and check out any warnings that could occur.
Before I go stomping around in the database, I would like to know what needs to be changed in the database specifically.
As it was written above, there is a table
<prefix>chatoperator that contains all operators' data. The field
vcavatar stands for avatar image. So, if you know the location of the avatar you could set the value of that field manually.
For example, if the URL of the avatar is
http:// <your domain>/<path to your Mibew>/images/avatar/1.jpg, the value of
vcavatar field should be
/<path to your Mibew>/images/avatar/1.jpg