You may receive the following error when uploading a theme in WordPress network:

This file is too big. Files must be less than 1500 KB in size.

The limit of 1500 KB can be increased as follows:

  1. Go to your website’s control panel (usually
  2. Open PHPMyAdmin
  3. Open your WordPress website’s database
  4. Open the table wp_sitemeta
  5. Find the entry “fileupload_maxk”, click edit, and replace 1500 with a higher number.

If this post raised some questions feel free to ask me a question