Quick suggestion needed please

What is the solution of theser error as i am facing this.

Check validator resolution crashed

It looks like you’re still using Gatling 2, which was terminated several years ago.
Please upgrade, and then report the full error message and a reproducer as instructed in this group’s terms:

  • Provide a Short, Self Contained, Correct (Compilable), Example (see http://sscce.org/)