Issues post phpbb 3.0.8 update

[IRONMFIve]

I have an issue and am not sure if this is the correct location for help. I updated my forum to phpbb 3.0.8 and all seemed fine. However, when users tried to submit a vote on a poll, they received an error. This error only occurred when the user had AcidTechRed as their style sheet. When they changed to subsilver the polls functioned as normal.

A second result was that our chatbox disappeared from the site completely. I used the autoupdate functionality and everything seemed fine with the install

Any help or guidance is very appreciated .

[topdown]

The autoupdater does not save code edits from previous mods.
You need to put the edits back in for the chat mod.

As for the error in the polls, you know it is related to the style.
So now you need to see what the error says. It usually hints to the issue.