showing Limit exceeded

Good afternoon...trust you're good. I've been having issues working with but it's not responding. it's showing Limit exceeded, sorry it seems like too many people are working on the sheet right now please try again later. meanwhile no one is working on the sheet except me the link is https://sheet.zoho.com/sheet/open/mimvz396014dc4940471487da1c5513a27ef1?sheetid=0&range=AF2293:AI2593