error line 53

Suite and Optimus Suite 5
#1

Hello
I successfully parse my grid, add a line at the bottom w/o errors but when I return from the function I have an "TypeError: a is null. In dhtmlxgrid.js line 53 that starts like this
"if(typeof f==“string”||typeof f==“number”)

Any idea what could generate that error after success? I use the same pattern elsewhere wop, using 3.5. tia.

#2

Unfortunately the issue cannot be reproduced locally.

If the problem still occurs for you please, provide with any kind of sample of the used code.