Numeric gid causes "Internal server error" when opening "User management"

[d-jsb]

Setup:
NC Version 28.0.6
user_sql 4.7.1 connecting to a yoomla DB - worked fine for some years now

Steps:
As (local) admin try to open user management with user_sql active and configured.
Result is a page telling about Internal server error -> user mgmt. not accessible

In the log:
OCA\UserSQL\Backend\GroupBackend::getGroupDetails(): Argument #1 ($gid) must be of type string, int given, called in /www/htdocs//lib/public/Group/Backend/ABackend.php on line 90 in file '/www/htdocs//apps/user_sql/lib/Backend/GroupBackend.php' line 428

Problem goes not occure if user_sql app is disable - obviously user login is now very difficult ;)
Fortunately user login does not seem to be affected

[d-jsb]

With log level debug I found:

/appinfo/app.php is deprecated, use \OCP\AppFramework\Bootstrap\IBootstrap on the application class instead.

Return type of OCA\UserSQL\Query\QueryProvider::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Query/QueryProvider.php#269

Return type of OCA\UserSQL\Query\QueryProvider::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Query/QueryProvider.php#261

Return type of OCA\UserSQL\Query\QueryProvider::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Query/QueryProvider.php#249

Return type of OCA\UserSQL\Query\QueryProvider::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Query/QueryProvider.php#241

Return type of OCA\UserSQL\Properties::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Properties.php#258

Return type of OCA\UserSQL\Properties::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Properties.php#226

Return type of OCA\UserSQL\Properties::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Properties.php#214

Return type of OCA\UserSQL\Properties::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice at /www/htdocs//apps/user_sql/lib/Properties.php#206