I find another mistake:
;Artificial Intelligence Script
;Header
desc = Werkbank Bzion Revolver
;Triggers
:state=0:dimvar=cash
:state=0:setvar=cash 0
:state=0:state=1
:state=1,plrdistwithin=80:state=3
:state=3,plrcurrentweapon=Norilsk/BizonLev01:state=10
:state=10,vargreater=cash 49:state=11
:state=11:fpgcrawtextsize=24,fpgcrawtextfont=verdana,fpgcrawtextr=150,fpgcrawtextg=150,fpgcrawtextb=150,fpgcrawtextx=50,fpgcrawtexty=60
:state=11:fpgcrawtext=Bizon Level 2 kaufen für 50$
:state=11,plrusingaction=1:state=12
:state=12:removecurrentweapon,state=13
:state=13:giveplrweapon=Norilsk/BizonLev02,state=2
:state=3,plrcurrentweapon=Norilsk/BizonLev02:state=20
:state=20,vargreater=cash 99:state=21
:state=21:fpgcrawtextsize=24,fpgcrawtextfont=verdana,fpgcrawtextr=150,fpgcrawtextg=150,fpgcrawtextb=150,fpgcrawtextx=50,fpgcrawtexty=60
:state=21:fpgcrawtext=Bizon Level 3 kaufen für 100$
:state=21,plrusingaction=1:state=22
:state=22:removecurrentweapon,state=23
:state=23:giveplrweapon=Norilsk/BizonLev03,state=2
:state=3,plrcurrentweapon=Norilsk/BizonLev03:state=30
:state=30,vargreater=cash 149:state=31
:state=31:fpgcrawtextsize=24,fpgcrawtextfont=verdana,fpgcrawtextr=150,fpgcrawtextg=150,fpgcrawtextb=150,fpgcrawtextx=50,fpgcrawtexty=60
:state=31:fpgcrawtext=Bizon Level 4 kaufen für 150$
:state=31,plrusingaction=1:,state=32
:state=32:removecurrentweapon,state=33
:state=33:giveplrweapon=Norilsk/BizonLev04,state=2
:state=3,plrcurrentweapon=Norilsk/BizonLev04:state=40
:state=40,vargreater=cash 299:state=41
:state=41:fpgcrawtextsize=24,fpgcrawtextfont=verdana,fpgcrawtextr=150,fpgcrawtextg=150,fpgcrawtextb=150,fpgcrawtextx=50,fpgcrawtexty=60
:state=41:fpgcrawtext=Bizon Level 5 kaufen für 300$
:state=41,plrusingaction=1:state=42
:state=42:removecurrentweapon,state=43
:state=43:giveplrweapon=Norilsk/BizonLev05,state=2
:state=3,plrcurrentweapon=Norilsk/BizonLev05:state=50
:state=50,vargreater=cash 499:state=51
:state=51:fpgcrawtextsize=24,fpgcrawtextfont=verdana,fpgcrawtextr=150,fpgcrawtextg=150,fpgcrawtextb=150,fpgcrawtextx=50,fpgcrawtexty=60
:state=51:fpgcrawtext=Bizon Level 6 kaufen für 500$
:state=51,plrusingaction=1:state=52
:state=52:removecurrentweapon,state=53
:state=53:giveplrweapon=Norilsk/BizonLev06,state=2
:state=3,plrcurrentweapon=Norilsk/MODEL36lev01:state=60
:state=60,vargreater=cash 99:state=31
:state=61:fpgcrawtextsize=24,fpgcrawtextfont=verdana,fpgcrawtextr=150,fpgcrawtextg=150,fpgcrawtextb=150,fpgcrawtextx=50,fpgcrawtexty=60
:state=61:fpgcrawtext=MODEL36 Level 2 kaufen für 100$
:state=61,plrusingaction=1:state=62
:state=62:removecurrentweapon,state=63
:state=63:giveplrweapon=Norilsk/MODEL36lev02,state=2
:state=3,plrcurrentweapon=Norilsk/MODEL36lev02:state=70
:state=70,vargreater=cash 199:state=71
:state=71:fpgcrawtextsize=24,fpgcrawtextfont=verdana,fpgcrawtextr=150,fpgcrawtextg=150,fpgcrawtextb=150,fpgcrawtextx=50,fpgcrawtexty=60
:state=71:fpgcrawtext=MODEL36 Level 3 kaufen für 200$
:state=71,plrusingaction=1:state=72
:state=72:removecurrentweapon,state=73
also be sure that the weapons which you called with giveplrweapon= are anywhere in the level.
Addition:
I never use the giveplrweapon action, because it comes with some strange bugs. Sometimes I have 999 ammo, sometimes I have 6 ammo.
Make this forum to something a little bit better and release more stuff. So we can push the Request/NoobHelp threads aside.