InvalidArgumentException: Index name "share_id_index" for table "NQo3N_onlyoffice_permissions" collides with the constraint on table "NQo3N_federated_reshares"

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because i think that nobody can explain me clearly what is to do i loaded a backup and deinstalled the openoffice app and tried it again but still the same error comes.

Now I loaded again the backup and hope that someone can explain me, who doesnt know how to start a console etc, how to solve this problem.