In script/lib/util.lua, please change line 16 from
util = {}
to
if not util then util = {} end

The original line of code overrides the whole util library from vanilla Factorio, making other mods to throw error when accessing the functions in it, like util.table.deepcopy
The updated code only create a new instance of util if it has not existed yet.

This should fix the compatibility issue for Creative Mode, and probably also other mods.

Thank you very much for this help! now it should work with almost any mod