Hi,
first log show normal "traces" : this show try to migrate from version < V4.0.0 and just points out that some errors may be displayed, without affecting correct execution.
You get connection error : only admin/admin is allowed during migration.
Maybe you should try brand new install from scratch with this configuration.
I don't understand why you had to comment function projeqtor_set_time_limit().
What was the error ?
About german characters, as many german users have contributed to the forum, I really thing it is a simple configuration issue.
Server must accept UTF8, and maybe you should play with ProjeQtOr parameter
This parameter has been introduced in V4.4 to fox some UTF8 transposition, maybe it is an issue in your case.
You can for instance try to set it to '0'.
Maybe you can ask climb4fun for hints.