How do I restore automatically closed Safari tabs on iPad?

i don’t understand why but I never closed safari and didn’t close any tabs, I just went back to this and now all my tabs are closed It only closed all my tabs like in the “main” one, in the other groups I made I have all the tabs (hopefully) but there were so many its annoying!! Can I restore it somehow? Like all in one go? I’m not gonna sit here pressing + for ages opening last closed pages one by one and there are not every page anyway .

[Edited by Moderator]

Original Title: ipad closed all my tabs