How to use assertion steps without getting stuck ?

Hello,

I'm back again on this problem :

I launched several times my testcase without problem, I could access the Assertion step.

Then I did add a groovy step in my testCase

I realized that it was finally useless and I deleted it (I thought I did but, in fact, it didn't work)

I duplicated a test step that I moved above my unwanted groovy script.

Now that I have this groovy step that I cannot delete, when I run my testCase it fails on my assertion step.

I can no longer open this assertion step.

I cannot delete my groovy script

please find attached all the available logs (unfortunately, if I clear logs before launching my test case, no error appears ? so I attach a full log)

thank you