You have missed the closing bracket.
insert into TrackIt (FullName,UserName,actiontype,actiondesc,actiontime) VALUES(@param1,@param2,@param3,@param4,@param5
Correct SQL is :
insert into TrackIt (FullName,UserName,actiontype,actiondesc,actiontime) VALUES(@param1,@param2,@param3,@param4,@param5)
Fix is
SqlCommand command1 = new SqlCommand("insert into TrackIt (FullName,UserName,actiontype,actiondesc,actiontime) VALUES(@param1,@param2,@param3,@param4,@param5)", con1);