For the FOP2 manager you need to also edit /var/www/html/fop2/admin/config.php and set the mysql credentials there.
However, if your plan is to monitor multiple servers, that is not the way to do it as the manager is single server. In the case of multiple server you will need to install the manager in each asterisk box, and then modify the autoconfig scripts on the fop2/central server to run via passwordless ssh the autoconfig scripts on each Asterisk PBX. You will also need to modify the auto configs in each asterisk pbx so it also returns the server=x.x.x.x directive and possibly add a group=server directive also.
If it is only for ONE server, then specifying the remote mysql on /var/www/html/fop2/admin/config.php should work. You can try that out, after that, login into the manager will retrieve config from the remote asterisk mysql database and populate the local tables. Also, the auto config scripts will read the settings for mysql on /var/www/html/fop2/admin/config.php and retrieve conf from there.
Notice that the mysql user must have permissions to create tables, otherwise it will fail.
The astman errors you see are not a problem, they won't prevent all of the above from happening.. the manager connection is used in order to get the park config only. In the current version the server/host is hardcoded, but in the next release it won't be.. You can look at the code and fix that part, or leave it as is and turn off debug as it is not a critical issue.
Best regards,
