PLUGGIN: My Custom Functions

I attempted to place a code into the head of my area of the site. But, instead I placed the code in the wrong place. [ i.e., I placed the code into the wrong place....I placed it in to a plugging titled: My Custom PHP, at line 19. Due to this mistake, I am now getting a error code and I am unable to access the admin area. Can yo you assist me in removing the code mentioned above ? Thank you advance. Below is a copy of the error message I am getting

Parse error: syntax error, unexpected '<', expecting end of file in /home2/opmstreams/public_html/wp-content/plugins/my-custom-functions/inc/php/functional.php(93) : eval()'d code on line 19