XF 1.2 Upload Error - uplaoding game in xfarcade

Wasn't sure where to ask help, so I'll try here. Some .tar file games just refuse to upload and install. Others upload and install fine. Reading the error, it must be something set in my host server. Can anyone help me try to resolve this error please? I am not even sure where to locate the php.ini file.

Server Error
Error processing uploaded file. Make sure upload_max_filesize is set properly in php.ini
  1. Arcade_Model_Import->extract() in Arcade/ControllerAdmin/Arcade.php at line 277
  2. Arcade_ControllerAdmin_Arcade->actionImport() in XenForo/FrontController.php at line 347
  3. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
  4. XenForo_FrontController->run() in /home/nctrimed/public_html/admin.php at line 13


XenForo moderator
Staff member
It may be best contacting your host if you are unsure where that file is or how to edit it.

It's not a XenForo file, it's related to the server configuration.