I wanted to change the hsm_rpt_last variable, and it wouldn't compile. It seems it's getting the same error as what you said you fixed. Maybe you didn't update the source?
Error below:
Your plugin failed to compile! Read the errors below:
SourcePawn Compiler 1.2.1
Copyright (c) 1997-2006, ITB CompuPhase, (C)2004-2008 AlliedModders, LLC
/home/groups/sourcemod/upload_tmp/phpsDI2Jw.sp(6
: error 021: symbol already defined: "MaxClients"
/home/groups/sourcemod/upload_tmp/phpsDI2Jw.sp(117) : error 022: must be lvalue (non-constant)
2 Errors.