Extract from link above. Not tried the we web version but could be an answer??
"
Hi,
Seems so. When I today tried Skype version 4.3.0.37 on my 32 bit Linux Mint 18.2, I got the same symptoms. And once, it came up witn an upgrade link - to a 64 bit version :-(
Thought about completely giving up Skype on this PC, but remembered having read about a web-version of Skype.
And i found, that Skypes web-version works fine on my old laptop through:
https://web.skype.comusing chromium on 32-bit linux
Chrome has ended support for 32-bit)
Regards
Steen"