- Regarding the error: https://discourse.hkvstore.com/t/call-to-a-member-function-get-on-null/3053/1
- Regarding the global functions:
- Migrating to v2021: https://phpmaker.dev/doc/migrate2021.htm, and
- Server Events and Client Scripts: https://phpmaker.dev/doc/customscripts.htm (look for “Some Global Functions”)