Errors using Data Migration php 8.1

Hi there,

I’m getting errors using you extension to migrate products.

Deprecated: Return type of CCache::offsetExists($id) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/u12155p294884/domains/u12155p294884.web0163.zxcs-klant.nl/public_html/pub/ub-tool/yii-1.1.22/caching/CCache.php on line 337
Deprecated: Return type of CCache::offsetGet($id) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/u12155p294884/domains/u12155p294884.web0163.zxcs-klant.nl/public_html/pub/ub-tool/yii-1.1.22/caching/CCache.php on line 348
Deprecated: Return type of CCache::offsetSet($id, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/u12155p294884/domains/u12155p294884.web0163.zxcs-klant.nl/public_html/pub/ub-tool/yii-1.1.22/caching/CCache.php on line 361
Deprecated: Return type of CCache::offsetUnset($id) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /public_html/pub/ub-tool/yii-1.1.22/caching/CCache.php on line 372
Deprecated: Return type of CHttpSession::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /public_html/pub/ub-tool/yii-1.1.22/web/CHttpSession.php on line 447
Deprecated: Return type of CHttpSession::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/u12155p294884/domains/u12155p294884.web0163.zxcs-klant.nl/public_html/pub/ub-tool/yii-1.1.22/web/CHttpSession.php on line 563
Deprecated: Return type of CHttpSession::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /public_html/pub/ub-tool/yii-1.1.22/web/CHttpSession.php on line 573
I’m using Magento 2.4.7 CE and I get these errors. The version I have is 3.2.4.

Br,

Stevan