getting error on attack rolls from roll 20 not sure of as why it worked at first now all i see is error.

SyntaxError: Expected "(", ".", "[", "abs(", "ceil(", "d", "floor(", "round(", "t", "{", [ |\t], [+|\-] or [0-9] but end of input found.

useing foxfire had no problems at first from 5th edition sheet.

If you're using Actoba's D&D 5e Character Sheet (Sheet version 29th Mar 2015), try filling in the Crit Dmg field for your Weapon.

This is only on Firefox? Have you tried any other browsers to see if the issue happens there too?  Can you please follow Steps 1-3 of our Solving Technical Issues wiki page (temporarily disable all browser add-ons and extensions, temporarily pause any anti-virus, and try switching browsers (for Chrome/Firefox specific issues) ) to see if one of those components is causing the problem. If none of that resolves the issue, follow Step 4 , so that we can have this information to further assist you.

it was because there was no number in crit area field like you said thanks for the help.

As the issue is resolved, I will be closing the thread.