Leinaded: The ERR chain is br0ken, that's hardly the pools fault.
Balance is added to your account as the blocks mature, if the chain is stale, so is the confirmations on blocks, when the blocks don't get confirmed, I cant credit them to your account. Simple as that.
If it was a misunderstanding on my part I apologize but why didn't you say that the chain was broken when I made this question to you on your pool's chat several days ago? I think I remember clearly how you answered:
"In my server I have not registers of hashes of ERR submitted by your client so I can't credit ERR to your account". What I concluded by your explanation is that you hadn't any proof that I had mined ERR in your server so I wasn't going to receive a single ERR. Not that the blockchain was broken and I had to wait till it fixes to receive them.
You didn't mention anything of what you're writing here today, on top of that with FST happens the same, the chain is broken and your pool's user area clearly notifies there are transactions of FST pending waiting for blocks to be confirmed. But strangely enough with ERR there are no notifications as with FST. Also I receive small transactions of coins I haven't mined at all maybe because of the error in your server you mention.
I'm sorry if my review upsets you but I tried to be as impartial as possible listing the pros and cons, one of the pros being how you answer promptly (about a day) to questions in your chat, not many pools have this useful feature.
Imo maybe you should admit that if you credit altcoins later than other pools, credit altcoins clients have not mined (although from an error in your server) and your website notifies a broken chain in some cases but not others, and being confusing on the chat when users want to know why the altcoin isn't being credited to their accounts, those are flaws in your pool and if I want to give a thorough review I have to mention them.
If you step up and are working hard to improve your pool that will speak in your favor and users will realize that the owner is putting good effort in his pool. If you only get upset at constructive criticism and do not take action to improve it will only make more people choose other pools.