If you are experiencing the forcibly closed error for more than a few days please follow this article to help us and your ISP identify the problem: https://support.aternos.org/hc/en-us/articles/360027235671
Please read the article carefully and don't skip any steps, questions or suggestions.
Following this article will not instantly fix your problem. It only helps to find the root cause which can then be fixed by the network provider.
Thank you very much but i tried it with other mods and it did not happen