This site "
https://api-free.deepl.com/v2...." need more tests.
He cannot display translate messages even in Firefox.exe or GoogleChrome.exe or InternetExplorer8Win.
\Is not your fault & VLISP. because "
https://api-free.deepl.com/ " need more tests with many operating-systems (win8, linux , ubuntu. win10, knoppix, android, winxp, ) with "MsEdge, FireFox, opera.exe,AcWeb, Comaxton.exe,)
If he failed inside so many operating systems, then "he=//api-free.deepl.com/"
--is broken. is zerop.
After these tests minim70% succesfully, than You can execute in VLIDE with VLISP with "api-free.deepl.com/v2"