hi there. Hope its ok to post here, apologies if not and please move it to a suitable place?

Im trying to stack two sessions in sirilic. If i can do that, i should be able to add more sessions.

However, i get a problem - my script builds and runs but aborts very near the end. If anyone can suggest a solution, or a more suitable place i can ask for help i'd really appreciate it.

end part of log here:

log: Saving FITS: file pp_images_00042.fit, 3 layer(s), 5202x3464 pixels, 16 bits
log: Sequence processing succeeded.
log: Execution time: 52.76 s
log: Running command: cd
9: running command cdlog: Setting CWD (Current Working Directory) to 'G:\astro\data\projects\sirilic working folder\M101\DSLR\first go02'
log: #
log: #TAG#} [8]
log: Running command: cd
9: running command cdlog: Setting CWD (Current Working Directory) to 'G:\astro\data\projects\sirilic working folder'
log: ################################################################################
log: #TAG#{ [9] Merge ...
log: #
log: # Group Directory
log: Running command: cd
9: running command cdlog: Setting CWD (Current Working Directory) to 'G:\astro\data\projects\sirilic working folder\M101\DSLR\GROUP'
log: Running command: merge
9: running command mergelog: Setting CWD (Current Working Directory) to 'G:\astro\data\projects\sirilic working folder\M101\DSLR'
log: Checking sequences in the directory: G:\astro\data\projects\sirilic working folder\M101\DSLR.
log: No sequence found, verify working directory or change FITS extension in settings (current is .fit)
log: No sequence `first' found.
log: Could not open sequence `../first' for merging
log: Setting CWD (Current Working Directory) to 'G:\astro\data\projects\sirilic working folder\M101\DSLR\GROUP'
log: Error in line 136 ('merge'): generic error.
log: Exiting batch processing.
log: Setting CWD (Current Working Directory) to 'G:\astro\data\projects\sirilic working folder'
log: Script execution failed.
~~~ warning:Reading sequence failed, file cannot be opened: offsets.seq.
~~~ warning:Reading sequence failed, file cannot be opened: darks.seq.
~~~ warning:Reading sequence failed, file cannot be opened: flats.seq.
~~~ warning:Reading sequence failed, file cannot be opened: pp_flats.seq.
~~~ warning:Reading sequence failed, file cannot be opened: images.seq.
~~~ warning:Reading sequence failed, file cannot be opened: offsets.seq.
~~~ warning:Reading sequence failed, file cannot be opened: darks.seq.
~~~ warning:Reading sequence failed, file cannot be opened: flats.seq.
~~~ warning:Reading sequence failed, file cannot be opened: pp_flats.seq.
~~~ warning:Reading sequence failed, file cannot be opened: images.seq.
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