Busy server issue causes severe trouble in PUBG. As PUBG is one of the most famous battle royale games, gamers from all over the world are crazy about it. So, you are not alone who is encountering the server busy issue. If you’re getting “Servers are too busy, please try again later” error message, try these fixes.
Source : https://printer-support-en.com/5-ways-to-fix-busy-servers-issue-in-pubg/