Hi, when i click sent the following error occurs and nothing happens

Event thread: click
Uncaught exception: TypeError: Cannot convert 'form.temail' to object
Error thrown at line 38, column 1 in JOSC_editPost(id, parentid) in http://riversideband.pl/en/components/com_comment/joscomment/templates/magazineJoomla/js/custom.js:
    if(!form.temail.disabled)
called from line 1, column 0 in (event):
    JOSC_editPost(-1,-1)

I'm using the latest Compojoom and magazineJoomla template

there is also information that

Uncaught TypeError: Cannot read property 'value' of null custom.js:5
Uncaught TypeError: Cannot read property 'disabled' of undefined custom.js:38