OCEAN MC script with SpectreX run fail

I have an Ocean script for running MC simulations. I debugged the operation of the script with a small test circuit.

I would receive this error,

 ERROR (EXPLORER-2406): A history entry named Ocean.0 cannot be created.
There is already a history entry with that name.
Delete the existing entry or choose a different name.

so I added this line

ocnxlHistoryPrefix(getCurrentTime())

and this worked. I was running spectre, not spectreX at this point.

I created the ocean script for the test bench of the circuit I want to test, It's a large circuit that takes a long time to simulate. I received this output. The Error seems to be present on every run, working or not. I've redacted some path names in the message.

*Error* axlGetMainSetupDB: argument #1 should be a string (type template = "t") - nil
-------------------------------
Run Setup Summary:
-------------------------------
Run Mode: "Monte Carlo Sampling"

(enabled) 1 Test Point Sweep
(enabled) 0 Corner
(enabled) Nominal Corner
-------------------------------
1/3 completed.
*Info* The history of this OCEAN XL run is saved as "Apr 28
14:20:55 2025.0".

*Info* The results of this run are saved in
"***redacted****/maestro/results/maestro/Apr%2028%2014:20:55%202025.0.rdb".

*Info* The simulation data from this run are saved in
"***redacted****/maestro/results/maestro/Apr%2028%2014:20:55%202025.0".

*Info* Spec results are not available as all the simulation runs
have failed with errors.

WARNING (OCN-6040): The specified directory does not exist, or the directory does not contain valid PSF results.
Ensure that the path to the directory is correct and the directory has a logFile and PSF result files.
Please specify a results directory.
Please specify a results directory.

I changed the script to use SPECTRE and it worked, albeit it took 3 hours for 10 points. So this seems to be an issue with spectreX and the script.

I created the script from Explorer, the Exporer testbench runs fine. The only changes I've made is adding the History prefix line and some processing at the end of the file.

Unfortunately we only have 1 assembler license and I can never get hold of it to see if it works if I call that rather than explorer.

I've tried removing the history prefix and the  ERROR (EXPLORER-2406): A history entry named Ocean.0 cannot be created. returns.

I'm can't think what else to try that I've not tried already.

Any help appreciated.

Cheers in advance