deja-dup error message

[oldtimer79]

I have been struggling for the last two or three weeks to restore from a deja-dup backup. In updating from Linux Mint 18 to 19 I managed to wipe my home partition. Trying to restore from backup with deja-dup I got an unhelpful 'an error has occurred'. I have a file; /media/russ/2C3B-0AEC/duplicityfull.20180722T125101Z.manifest followed by a large number of duplicity-fullxxxxxxx.difftar.gz folders.
Can anyone help?

[Laurent85]

Post the command used and the full output.

[oldtimer79]

Thanks for your response. The message I get after trying to restore is;
Traceback (innermost last):
File "/usr/bin/duplicity", line 1555, in <module>
with_tempdir(main)
File "/usr/bin/duplicity", line 1541, in with_tempdir
fn()
File "/usr/bin/duplicity", line 1393, in main
do_backup(action)
File "/usr/bin/duplicity", line 1419, in do_backup
action).set_values()
File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 710, in set_values
self.get_backup_chains(partials + backend_filename_list)
File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 836, in get_backup_chains
add_to_sets(f)
File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 824, in add_to_sets
if set.add_filename(filename):
File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 105, in add_filename
(self.volume_name_dict, filename)
AssertionError: ({1: 'duplicity-full.20180722T125101Z.vol1.difftar.gz', 2: 'duplicity-full.20180722T125101Z.vol2.difftar.gz', 3: 'duplicity-full.20180722T125101Z.vol3.difftar.gz', 4: 'duplicity-full.20180722T125101Z.vol4.difftar.gz', 5: 'duplicity-full.20180722T125101Z.vol5.difftar.gz', 6: 'duplicity-full

This is followed by the rest of the backup files.