Surprising, I was using v 1.25 since last some time without any issue till 10.3. and when on 11.3 I opened RTD, I faced issue
Trading symbol must be present Market Watch
I configured ver 1.30 as suggested and got a similar error as posted in this image
I do not understand, why all of a sudden ver 1.25 started throwing error while I was using this version since a long time and even ver 1.30 is throwing similar error, even when trading symbol is present in market watch.