Unable to upgrade 18. -> 19

Hi there!
I am facing troubles upgrading from 18.0.6 -> 19.0.6. The Web-Updater fails with:
Doctrine\DBAL\Schema\SchemaException: The table with name 'oci-pbijidod81.shw18_recent_contact' already exists.
Unfortunately I cannot find the table *_recent_contact in phpmyadmin. Is there a way to manually fix this issue?