cts supermod:

COMPILE ERROR - file: seadogs.c; line: 351

Invalid Expression

COMPILE ERROR - file: seadogs.c; line: 351

Undeclared identifier: GetVersionString

carribean stories:

COMPILE ERROR - file: seadogs.c; line: 349

Invalid Expression

COMPILE ERROR - file: seadogs.c; line: 349

Undeclared identifier: GetVersionString

GOF2.5:

COMPILE ERROR - file: seadogs.c; line: 457

Invalid Expression

COMPILE ERROR - file: seadogs.c; line: 457

Undeclared identifier: GetVersionString

Lost Ships:

COMPILE ERROR - file: seadogs.c; line: 457

Invalid Expression

COMPILE ERROR - file: seadogs.c; line: 457

Undeclared identifier: GetVersionString

Because you are trying to run them with an old Maelstrom version.  You must update to one that is newer than October 2020 for that GetVersionString to be a valid script function, because that is when it was added to the engine.

tyvm, updating it fixed it