Your tests show this error:
No keyword with name '${result_run}= start journey with config' found.
That means that the robot test runner is encountering that complete string at a point where it's expecting a keyword. This is likely because it appears you have only a single space between the =
and start journey...
. Try adding another space so that the variable and the keyword are in two separate cells in the test case table.
${result_run}= start journey with config
# ^^ two spaces
If you switch to using the pipe-delimited format these types of problems will be much easier to spot.