Hi @Bhaumik1
It would be extremely helpful if you always provide "Diagnostic Info" from Admin > Troubleshooting.
And always include the errors you are getting also as plain text, so other people can search for it.
That's how you become a good internet citizen and a good forum user.
You either have to change the column in the database or use a Custom Column like concat([TaskID], "")
and filter on that instead.