Delivery number issue after upgrading to 1.7.8

[Gipsy]

Hi everyone,

i'm facing an issue generating my delivery slips number after the upgrade to 1.7.8
I started a fresh install of prestashop and copied my old database to the new one, checking the structure of every folder to avoid issues.

All is working fine, except delivery slip number which increase starting from the last numbering of the year 2020 (not even from 2021, perhaps because in 2021 the number of the last delivery slip was lower than that of 2020).

Having performed a fresh installation, I don't think the issue is due to a file error. It probably depends on the database, but I can't find the error. All order folders have been updated correctly, adding or changing different parameters.

I have already checked all the orders folders, the delivery slip and the configuration one. Any clue on where else to check?