I have no idea how plugins are built, but there might be the case the plugin just expects one of these formats of GameIDs.
US Regions: PCSE**** & PCSA****
European Regions: PCSF**** & PCSB****
Asian / Korea, Singapore Regions: PCSH****, VCAS**** & VLAS****
Japanese Regions: PCSC****, VCJS****...