by Nick Schroeder.
I found a solution and I was able to restore the backups! I found this work around https://tracker.moodle.org/browse/MDL-34744 .
On line 159 of the “backup_controller_dbops.class.php”
I changed:
$dbman->create_temp_table($xmldb_table);
To
$dbman->create_table($xmldb_table);