It displays ffff before value of shipping price?!?

[servlet]

When you have to select shipping method there is ffff before the price
Any idea?
Joomla 3.8.14
Virtue mart latest

I tried downgrade but no result.
Please check the attached file

[GJC Web Design]

It must be coded somewhere in your files  -- check all your template files etc

[servlet]

It is VM core
No additional files or templates
Where suggest to search?

[Ventsi Genchev]

Standard should be displayed:
BG: Доставка (такса 20,00 лв.)
Eng: Delivery (Fee 20,00 лв.)

Look at:
language/bg-BG/bg-BG.com_virtuemart.ini

There must be a line that should be:
COM_VIRTUEMART_PLUGIN_COST_DISPLAY="Отстъпка/такса "

Or the file itself is broken. Wrong encoding, missing quotes or otherwise.
Or maybe a broken style. But whatever the reason, it is somewhere in your configuration.

[GJC Web Design]

No additional files or templates

your screen shot is not standard VM beez3 etc

[servlet]

Венци Ганчев благоSPAMаря
може би проблема беше счупен езиков файл, защото проверих преSPAMи SPAMа пиша SPAMали някой превоSPAMач не е написал нещо по погрешка.
Презаписах езиците и се оправи

The problem was in translation files - maybe broken. I rewrite languages and now it is ok.