translation issues

Hello,

I had translated into spanish the old version of the theme. Therefore, I am currently using the .po and .mo “old” files to avoid having to translate everything again.

I need to update these files into the new version. I am using Stripe, which was not available in the old version, and I need to translate these terms.

How can I do it?

Besides, there are several items that still appear in English. These are:

Collected (within the projects)
Successful/Unsuccessful (within the projects)
Ended (within the projects)
Wrong username or password (login)
Login successful, redirecting… (login)

I tried to find them with Loco and Poedit. Impossible. They are not there.

Could you please help me with this?

Many thanks in advance.