[amonrabr]

try to use:
if (playerchats&&startswith(jail,#c)){
setstring server.jail,#e(4,-1,#c);
setplayerprop #c,;}
if (strequals(server.jail,#a)){sleep 0.5;setlevel jail........
setstring server.jail,;}

or use tokens
if (playerchats&&startswith(jail,#c)){
tokenize #c;
setstring server.jail,#t(2);
......