This text appears In my webpage : Parse error: syntax error, unexpected ‘<‘ in /home/u404111249/public_html/wp-content/themes/iconic-one-pro/functions.php on line 375
Use FTP software like filezilla to delete the theme and start again by downloading fresh from member area or replace the functions.php file from the new download.
Another easy way is to ask your host to restore your website to previous day. Try this first.
Could you let me know what were you trying to do inside functions.php?