Question: problem:
Uncaught ReferenceError: FileAsyncWriter Writer is not defined
at Object.writelog (dScript_main_main_print_open-equipm.flow_main_cover-open carcarcarcarcarcarcarcards.js:34)
at E.that.that.ecolsMemberberFFunc (dScript_main_main_cover-up-against-openequiequiequiequiequiequiequipmor.flow_flow_print_open open open-reading carcarcarcarcarcarcarcards.js:81s:81)
at E.Z.ExecuteteScriptteScript Func (yhecols.js.js.js:js:1) at E.Z.ExecuteFunc2 (yhecols.js:1)
at E.DevicesEvent (yhecols.js:1)
at s.DispathEvent (yhecols.js:1)
at Y.UrlLoadCompelete (yhecols.js:1)
at yhecols.js:1

Solution: 
Adding Devices YHFileAsyncWriter