A backup should already exist because of the update. We set the row size and run the update again.
First we log in to mysql:
mysql -u root -p
Now the affected database is selected.
If the error occurs for multiple databases, this step must be performed for all affected databases.
This may be the case if there are multiple clients.
Now we set the ROW_FORMAT of the table from Fixed to Dynamic:
ALTER TABLE isys_cats_person_list ROW_FORMAT=DYNAMIC;