Fatal error

I installed the PageLines theme on my website and now I get this message everytime I try to access the Dashboard:

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 122880 bytes) in /data/8/0/139/67/628393/user/640949/htdocs/wp-content/themes/pagelines/admin/class.extend.php on line 163

The website ( https://mkeslteaching.com/ ) itself is working on a limited capacity. My previous theme was working fine and this is the first time I’ve run into this kind of problem.

Any hints or ideas on how I can resolve this?

Thanks!