Site Crash after upgrade

I recently upgraded my site, roomdecoratingideas.net to wordpress 7.0 and suddenly my computer crashed and the site wasn’t working properly. I reversed back to the 6.5 but now when I go to my site it says:

Parse error: syntax error, unexpected ‘)’ in /homepages/4/d249494428/htdocs/wproomdecoratingideas/index.php on line 1

Please help!

Thanks,
Sara