Trying to upload Citrus Wordpress theme but getting an error


This is the error I am getting:

[Tue Jul 26 08:14:03.906702 2016] [:error] [pid 3812] [client] PHP Warning: POST Content-Length of 12044293 bytes exceeds the limit of 8388608 bytes in Unknown on line 0, referer:

Can anyone explain what to do


Upload limit is set by wordpress, see