OpenSans font loaded by Modus with Piwigo V13

[geekitude]

After upgrading to v13, I had these errors :

Found this post : https://stackoverflow.com/questions/3972915/coretext-invalid-kern-subtable-in-ctfont/16041637#16041637
Suggesting to download font from FontSquirrel

I tried and replaced OpenSans files with the ones from FontSquirrel.

Problem solved, just reporting in case it's usefull for someone else

[geekitude]

Problem not solved after all. Error came back :(

[osworx]

Had the same problem with the latest v.14.x release if Piwigo.
Solution is quite simple:

1. goto https://gwfh.mranftl.com/fonts
2. select there Open Sans
3. select all styles
4. copy the displayed css style sheet (adopt the path to fonts/ )and save it (rename first the old one)
5. download the files (click big blue button under 4. )
6. save the .zip-file in the folder fonts/ (rename before the old folder to somewhat)

Ready - messages (and errors) are gone ..

p.s.: the core team should also do that way to avoid such errors.