Their official response

Raid: Shadow Legends Official #announcements

SERVER

 — Yesterday at 12:47

@everyoneDear players! First of all, we wish you a great and productive week ahead. There's some important news that we want to share - last week, we informed you all about personal rewards being a part of all the December CvCs. However, flexible as we are, we changed our mind seeing that many of you aren't exactly fans of this decision. The CvC that will be held on December 20-21 will not feature personal rewards.

On a separate note, we know that many players from Sweden, Denmark, and some other countries have been experiencing problems with the black screen showing upon the Plarium Play launch. The preliminary investigation has shown that this is happening due to problems on the side of the local ISP providers. For now, as a workaround, we recommend using available VPN services. However, we are in the process of investigating this issue further to see if there is anything we can do here. Thanks a bunch for your patience with this.

Seems strange that some local ISP at almost the same time would block traffic from Sweden, Denmark and some more countries to reach out of scandinavia. and strange that only Plarium that have problems, all other apps/programs works fine. Mobile versions works fine. 

Its only the(PC) Plarium launcher that seems to have problem, maby something in the coding?

im not very intrested in paying for VPN services.

Where is that official response from?

I highly doubt this is a ISP issue, why on earth should all ISP in Denmark and Sweden suddenly block Raid traffic? and all at the same time? it even works from Ipad etc, the only problem is windows computers?

From Sweden and cant launch Plarium play, black screen and i have windows 10

from their discord server anouncements

same problem here

Hello! An Update would be nice, if you care

😟

Talked to my ISP Telia here in Sweden, they don´t block anything.

Talked to a friend and he has another ISP and have the same problem.

I turned firewall etc off and still have the same problem. So NO it´s not the ISP that fails.

i just installed an "Free" VPN that will do the trick. Proton VPN  

it will only have 3 locations on the Free version but you only need one. :) 

You can also download VPN with pay, several of those give you a free test period. 

Have a look at TechRadar VPN tests for more info. 

I'll be damned... I am in denmark too. Installed Proton VPN, Direct startup, no problem anylonger. This is weird. Why I need to use VPN all of the sudden?

Same here, black screen. In Sweden. C'mon Plarium, respond.

Have the same issue. Dowloaded a VPN yesterday and it worked. Today its not working again. So a VPN do not fix the problem. 

*Update* Downloaded a another VPN and deleted the cache and now its working again. Until tomorrow i guess.... 

From Sweden, windows 10

So u want to to Pay for a vpn to play the game?

Or do anyone know A good semifree vpn?

Hello Everyone, I have also been in the same position for the last couple of days,

I am from Sweden on Windows 10.

I just tried and set up a Mobile Hotspot using my phone's mobile data, that works as a temporary fix.

I live in Ontario Canada and been having log in issues. I am using Windows 11 on pc

all that comes up when I click on Plarium play is a black logo screen. 

I downloaded Proton VPN for free and got it working. For today atleast. Iam not going to pay for a vpn to play a game.

Mobile Hotspot dint work for me :( 

DK

This could mean that there are some ISP's in Denmark/Sweden that are having trouble with Plarium Play, 

this is just a thought thought, since I got different ISP's for Mobile Data and wifi.

got back into the game

Yes, but I find it very strange. I literally live on internet, and do all kinds of weird stuff on it, but I have never had the use of a VPN, until suddenly Shadow Legends needed it. What is this sorcery? Shadow Legends function well on my Asus tablet.