[iNvectus]

At

get_user_origin(id, iOrigin);
            message_begin(MSG_BROADCAST, SVC_TEMPENTITY);
            write_byte(TE_BLOODSPRITE);
            write_coord(iOrigin[0]);
            write_coord(iOrigin[1]);
            write_coord(iOrigin[2]);
            write_short(blood2);
            write_short(blood);
            write_byte(229);
            write_byte(25);
            message_end();
                
            set_pev(id, pev_punchangle, ViewAngle);
            SetHamParamEntity(2, attacker);
            return HAM_IGNORED;

you have set the second parameter of

SetHamParamEntity(2, attacker);

as attacker id or entity id aka a player id. It expects a float value, not id of entity.

PS:

Ignore my post... Now that I've read what I've written last night... I apologize. It has nothing to do with it. Probably Natseh is right.