Branch name hook errors

[emmeowzing]

(base) emmadoyle@chelsea:~/projects/dynamic-continuation-orb$ gcp
pre-commit installed at .git/hooks/pre-commit
pre-commit installed at .git/hooks/prepare-commit-msg
trim trailing whitespace.................................................Passed
check for added large files..............................................Passed
check that scripts with shebangs are executable..........................Passed
mixed line ending........................................................Passed
trim trailing whitespace.................................................Passed
Test shell scripts with shellcheck...................(no files to check)Skipped
Validate CircleCI configs............................(no files to check)Skipped
Validate CircleCI Orb................................(no files to check)Skipped
mixed line ending........................................................Passed
Test shell scripts with shellcheck...................(no files to check)Skipped
Validate CircleCI configs............................(no files to check)Skipped
Add branch name as commit message prefix.................................Failed
- hook id: msg-issue-prefix
- exit code: 1

sed: -e expression #1, char 15: unknown option to `s'

(base) emmadoyle@chelsea:~/projects/dynamic-continuation-orb$ git branch
  ENG-138
  fix-config-changes
  fix-docs
  fix-includes
  fix-inclues
  master
  merge-pre-commit-hooks
  pin-circleci-cli-version
  recursively-eval-sh_
  remove-modules-dependency
* renovate/slack-4.x
  simplify-reduce
  test-changes