Oc_credentials disappeared

Hi,
I just updated nextcloud v19 to v20.
After this update the oc_credentials table disappeared.
I’m using the external storage media and it can’t be used anymore.
When I try to configure the storage in the system settings I get an internal server error.
How to recreate this table to get back the external storage management?

The output of my nextcloud.log contain this error:

SQLSTATE[42S02]: Base table or view not found: 1146 Table 'nextcloud.oc_credentials' doesn't exist",{"errorInfo":["42S02",1146,"Table 'nextcloud.oc_credentials' doesn't exist"]

And when I look at the list of tables:

mysql> show tables;
+-----------------------------+
| Tables_in_nextcloud         |
+-----------------------------+
| oc_accounts                 |
| oc_activity                 |
| oc_activity_mq              |
| oc_addressbookchanges       |
| oc_addressbooks             |
| oc_appconfig                |
| oc_authtoken                |
| oc_bbb_restrictions         |
| oc_bbb_room_shares          |
| oc_bbb_rooms                |
| oc_bruteforce_attempts      |
| oc_calendar_invitations     |
| oc_calendar_reminders       |
| oc_calendar_resources       |
| oc_calendar_resources_md    |
| oc_calendar_rooms           |
| oc_calendar_rooms_md        |
| oc_calendarchanges          |
| oc_calendarobjects          |
| oc_calendarobjects_props    |
| oc_calendars                |
| oc_calendarsubscriptions    |
| oc_cards                    |
| oc_cards_properties         |
| oc_collres_accesscache      |
| oc_collres_collections      |
| oc_collres_resources        |
| oc_comments                 |
| oc_comments_read_markers    |
| oc_dav_cal_proxy            |
| oc_dav_shares               |
| oc_deck_assigned_labels     |
| oc_deck_assigned_users      |
| oc_deck_attachment          |
| oc_deck_board_acl           |
| oc_deck_boards              |
| oc_deck_cards               |
| oc_deck_labels              |
| oc_deck_stacks              |
....

Best regards