It started 3 days ago... I'm having this error message very frequently and it's really annoying:

An error occured running the Unity content on this page. See your browser JavaScript console for more info. The error was:
InvalidStateError: A mutation operation was attempted on a database that did not allow mutations.

After this message I have to reload the game and it lasts about 10-15 minutes. Then I get this error again. I have tried other browsers and the result is the same. Then I tried another computer and got the same problem. So, it's not the fault of my computer.

I have the very same issue, was in the game yesterday early on, then had to go out, when i came back the game refused to load past 50% and is still refusing to load, and yes I have an up-to-date Chrome browser on a desktop computer (only means of which i can go online), and yes I have done the cache deletion, and no I have no other tabs open and or programs running.

However I have found that once i can get in game, if I turn off/disable all the little things via the in-game settings, the game works fine, but that's only once I have managed to get the game to load.

Well as i have not been able to load Kingdom's I figured I'd see if it was all games from Plarium....

result... no it's not,

I been on Pirates, no issues loading or playing so far....

Vikings would not load past 50%, same issue as Throne...

Stormfall Loaded, no issues..

Nords Loaded, no issues..

Soldiers Loaded, no issues..

Total Dom Loaded, no issues..

Sparta Loaded, no issues..

So it would appear that Only Throne & Vikings have a loading issue, am wondering if perhaps the transition from mobile to browser has not been thoroughly tested to be sure there are no glitches ect....

Well as i have not been able to load Kingdom's I figured I'd see if it was all games from Plarium....

result... no it's not,

I been on Pirates, no issues loading or playing so far....

Vikings would not load past 50%, same issue as Throne...

Stormfall Loaded, no issues..

Nords Loaded, no issues..

Soldiers Loaded, no issues..

Total Dom Loaded, no issues..

Sparta Loaded, no issues..

So it would appear that Only Throne & Vikings have a loading issue, am wondering if perhaps the transition from mobile to browser has not been thoroughly tested to be sure there are no glitches ect....

like..me....Zoltan..from..Rizerstin...i..can..not..play..my.shield.is.going.down...alot.of.money.will.go

Game is unplayable - keeps comming up with server lost connection - takes 45 mins of refreshing to get into the game and as soon as you press your first button the screen freezes and then connection drops out again. been non stop lag for last couple of days and now is unplayable - look through your servers error reports cause it certainly cant handle being played on at the moment. Shields dropping and players leaving daily because they couldnt get on when they needed to.

I'm experiencing the same issue. It won't load past 50%. I've already updated the browser and followed the troubleshooting guide. It would be nice if you can develop a mini client like other browser games. I prefer to play the game on PC. 

arcseraphiel said:

I'm experiencing the same issue. It won't load past 50%. I've already updated the browser and followed the troubleshooting guide. It would be nice if you can develop a mini client like other browser games. I prefer to play the game on PC. 

idk but try to clean cash ant delete all browser widgets

or you can download Plarium game app https://plarium.com/en/plarium-games/