I assume you readthat already.
The ZIP file should not contain more than 1,000 individual files after extraction.
The maximum length of a file name including path should not be greater than 240 characters long.
The size of all the extracted content should not be greater than 500MB.
The size any single extracted file should not be greater than 200MB.
The filenames are case sensitive and should be encoded as UTF-8
If your game does not meet the requirements please consider distributing your game as downloadable instead.
If this is for a jam, upload a downloadable version and fix the web version later. You can have both on the same project page.
The error message you get might indicate a different error. You told the "compressed" size of the pck, is it maybe uncrompessed over 200MB?