Deprecated errors

I’m using WPUM 2.9.10 and php 8.1
the plugin still contains many deprecated errors

PHP Deprecated:  Return type of WPUM\Carbon_Fields\Pimple\Container::offsetExists($id) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/wp-user-manager/vendor-dist/htmlburger/carbon-fields/core/Pimple/Container.php on line 111
PHP Deprecated:  Return type of WPUM\Carbon_Fields\Pimple\Container::offsetGet($id) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/wp-user-manager/vendor-dist/htmlburger/carbon-fields/core/Pimple/Container.php on line 87
PHP Deprecated:  Return type of WPUM\Carbon_Fields\Pimple\Container::offsetSet($id, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/wp-user-manager/vendor-dist/htmlburger/carbon-fields/core/Pimple/Container.php on line 70
PHP Deprecated:  Return type of WPUM\Carbon_Fields\Pimple\Container::offsetUnset($id) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/wp-user-manager/vendor-dist/htmlburger/carbon-fields/core/Pimple/Container.php on line 120