Missing terminating character

I am sure this is a simple fix but not being a programmer - not so easy for me. 

I am compiling the code, renamed it in the title and now getting missing terminating character on this line.
Any help is appreciated.
      </option></form><form class="js-jump-to-line-form Box-body d-flex" action="" accept-charset="UTF-8" method="get">

Thanks!