Hi Thanks for your answer. i tried using xcode organizer to symbolicate the crash log. when i clicked “open in project” it didn’t took me to a line. In thread 0 stack trace i noticed my some code was highlighted. on line 44 its cell.coder was written (I didn’t added this function) on line 56 same cell initialisation was happening and that was in red as i am using ! To use the cell using dequeReusableCell(with identifier) so, is that my issue right ?