need help with scar flax picker!!

im trying to work scar flaxpicker32 but almost every scar i run has errors and i need help im using scar 2.03.

RandomChatEvery(10 + Random(5));
LeaveScreenEvery(5 + Random(5));
HoverEvery(15 + Random(5), 'random');
PickUpMouseEvery(5 + Random(10))
RandomRClickEvery(15 + Random(5)) that is where it messs up it says

failed when compiling
line 445: [hint] (15195:10) : Variable 'I' never used in script C:/documents andsettings/owner/desktop/scars\flaxpicker32.scar
line 524: [error] (15274:1) : Unknown Identifier 'RandomChatEvery'in script C:/documents andsettings/owner/desktop/scars\flaxpicker32.scar
please help!

 

pleaseneed help