​Error application quit! on web browser

Hi all,

I have an issue related copy-paste line items in the document (Forecast). I copied 50 rows from excel file (30 columns include itemcode, warehouse and 30 weeks) it working very well. when I copy 100 rows, Web Sap Client exit window and view message "application quit!" immediately (Time out setting 30 min, i think it not related time out the setting) I had checked the "Tomcat log" but not log error record.