'Warning: Cannot modify header' Error on product pages

Hi, ive just installed Open Cart v1.2.9 and im getting this error in the error_log when viewing product pages:
I tried reuploading and reinstalling everything but im still getting the errors and i also double checked my php.ini and all settings seem to be ok, im not sure what else to try.

Thanks in advance for any help

does the capture work?

I will look into this. If the catures works its not a major isssue for now. In the next version though I have disabled headers been sent out if an output has already started.

Hi, the captcha image seems to be working fine this error doesnt seem to be affecting it.

Thanks for the quick reply at least i know its nothing to worry about and that the next update will fix this.