Same happens here, I have a 2015 MacBook Air and I cannot install: I get the following error on the log:
09/07/19 23:51:22 - [POL_Wine_SelectPrefix] Message: Selecting prefix: GuildWars
09/07/19 23:51:22 - [POL_Wine_PrefixCreate] Message: Setting POL_WINEVERSION to 2.22
09/07/19 23:51:22 - [POL_Wine_PrefixCreate] Message: Creating prefix (2.22)...
09/07/19 23:51:23 - [POL_Wine_PrefixCreate] Message: Using wine 2.22
09/07/19 23:51:23 - [POL_Wine_InstallVersion] Message: Installing wine version path: 2.22, x86
09/07/19 23:51:23 - [POL_Config_PrefixWrite] Message: Prefix config write: ARCH x86
09/07/19 23:51:23 - [POL_Config_PrefixWrite] Message: Prefix config write: VERSION 2.22
09/07/19 23:51:23 - [POL_Wine] Message: Running wine-2.22 --version (Working directory : /Applications/PlayOnMac.app/Contents/Resources/playonlinux/python)
09/07/19 23:51:23 - [POL_Wine] Message: Notice: PlayOnLinux deliberately disables winemenubuilder. See http://www.playonmac.com/fr/page-26-Winemenubuilder.html
wine-2.22
09/07/19 23:51:24 - [POL_Wine] Message: Wine return: 0