Ruby Linters Config R-Spec throws error

[Anjacodes]

When running the R-Spec test, we got the following error:

[DEPRECATED] This Gemfile does not include an explicit global source. Not using an explicit global source may result in a different lockfile being generated depending on the gems you have installed locally before bundler is run. Instead, define a global source in your Gemfile like this: source "https://rubygems.org/".
Warning: the running version of Bundler (2.2.32) is older than the version that created the lockfile (2.3.7). We suggest you to upgrade to the version that created the lockfile by running gem install bundler:2.3.7.
Resolving dependencies...
Your bundle is locked to rubocop (1.25.1) from locally installed gems, but that
version can no longer be found in that source. That means the author of rubocop
(1.25.1) has removed it. You'll need to update your bundle to a version other
than rubocop (1.25.1) that hasn't been removed in order to install.
Error: Process completed with exit code 7.