Hi @bobi_bob_boby ! 
Welcome to the Kinsta Community.
At the moment, the best workaround that has been found for this issue has been to attempt to quickly edit the file before the import runs. Typically this is accomplished by having it open in an editor during the download process, and then saving over the file before the import is attempted: DK0066: IMPORT_DB_DUMP: Error (1): (ERROR at line 1: Unknown command '\-' - #37 by Allan_Crabtree
Unfortunately we don’t know exactly when this will be fully resolved, but it has been reported to our development team, so hopefully that will be resolved in a new release.