LG AR750S not playing well with HotSpotShield

Aloha. I have AR750S that I've not used for a few years. It's currently at version 3.216. I use HotSpotShield as my VPN service. I have downloaded few OpenVPN config files for USA, NZ, Japan and S. Korea, but getting errors when connection with all. I've spent most of the day trying various things. It seems the three besides USA work OK, except if I disconnect from one of HSS's servers I have to reboot in order to connect to another. With the USA one, nothing gets me connected. This is what I see when trying, even after a reboot:

NOTE: the current --script-security setting may allow this configuration to call user-defined scripts

TCP/UDP: Preserving recently used remote address: [AF_INET]88.216.90.93:8041

Socket Buffers: R=[163840->163840] S=[163840->163840]

UDP link local: (not bound)

UDP link remote: [AF_INET]88.216.90.93:8041

I use HSS for multiple other devices, including a Google Chromestick, my Mac, Android phone, and iPad. No issues with any of those.

Appreciate any suggestions. I'm not a networking professional.

Mahalo (thanks) in advance.

Firstly sorry for this issue anyway.

Could you please download and upgrade the latest firwmare v4.3.25 in this link?
GL.iNet download center

Sine your current firmware is a bit old and we have applied many features improvements and bugs fixed during these updates.
If still this issue, please send us the system log again. And you may send us the vpn config file via private message if convenient, it shall be much helpful.

Thanks. I'll give it a try. I came across quite a few messages saying not to update beyond the version I currently have. But I'll give it a shot and let you know how it goes.