Parse error: syntax error, unexpected CANT ACCESS PAGE

I was adding some text working on the excerpt to the function.php area of the editor function, pressed update, and then this error came up “Parse error: syntax error, unexpected ‘}’ in /home/karsubhajit/public_html/wp-content/themes/zerif-lite/functions.php on line 1685”

the website url is normally https://www.modafinildeals.com but now i can’t even access that or the wordpress site to try and make edits to fix it. I have no idea what to do and am freaking out in fear that the entire website might be lost. What do I do????