I restored a backup on a server and I got this error on restarting the service:

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I tried to:
delete the logs
put another backup on
put the last working backup
put down and up the admin service
switch off and on the machine in which the TM1 runs
and nothing changed.
Anyone knows what is this?
EDIT:
it seems that it is working via TM1S but it is not an acceptable solution for the client.