After starting a migration in Tools & Settings > Migration & Transfer Manager the pre-migration check shows the following warnings:
The following Apache modules are not installed on the destination server: <module_name>
Apache modules are not installed on the destination server: jk, bw. Please install and enable these modules to prevent possible problems.
Failed to synchronize subscription with plan
Migration tools tried to perform operation in 3 attempts:
Plesk error : bandwidth - Description: phosting__mod_bw_not_installed. Requested: 2097152. Allowed: -1
Same Apache modules on different Linux distributions have different names.
Ignore the warning if the module is from this list. It's either already installed under a different name or was removed from the newer Apache version.
List of known modules for which the warning can be ignored:
Note: for other modules refer to this instruction if a manually installed module is missing from the destination server.