So, I tried to write my diary as usual, and there was an alert pop up:

Since I joined this website, everyday, I correct the Korean sentences every day wthat I see.

However, unfortunately, Korean is not a popular language ion this website, so there is a limited number of articles I can help with.

If this system is continuinges, I might loste my strike..eak

well, that’s quite sad, but I also don’t want to purchaseay.

So, I tried to write my diary as usual, and there was an alert pop upbut an alert popped up saying:

“You can’t write because your correction ratio is lower than 0.5%.”

Since I joined this website, I’ve been correcting Korean sentences whenevery day what I see them.

However, unfortunately, Korean is not a very popular language ion this website, so there isare only a limited number of articles I can help with.

If this system is continuinges, I might loste my strike..eak.

well, tThat’s quite sad, but I also don’t want to make a purchase.

I hope manyore people write their storyies in my mother tongue and also help me to write my storyies in English too!.

So, I tried to write my diary as usual, and there wasbut an alert popped up:

"but" shows a contradiction.
You were prevented, or blocked from doing what you wanted to do.

Since I joined this website, I have corrected Korean sentences every day what I see them.

The perfect tense shows you are still doing this.
You could also say "whenever I see them"--it sounds a bit more natural, but you might want to keep the emphasis on "every day," since a streak is added to and corrections are made each day.

1.However, unfortunately, Korean is not popular language in this website, so there is a limited number of articles I can help to correct.¶
2. However, unfortunately, Korean is not popular language in this website, so there are a limited number of articles I can help.

I honestly don't know which is correct, or if both are. My instinct is to use "are" to match "articles,"(2) but I could be persuaded that "is" matches "number"(1). Good luck with this!

If this system is continuinges, I might loste my strikeeak..

The ratio is part of the platform is design. It is a system, but it would be helpful to clarify that. We usually add an adjective before the word system to describe it, for example, the digestive system, the subway system. I'm not sure what you would call this system--the ratio system?
As an alternative, you might say, "if this situation continues" = a general observation, or
"if this penalty continues to be enforced" = a more specific reference to the system

wWell, that’s quite sad, but I also don’t want to purchase the premium version.

Here you used "but" correctly to show a contradiction.

"Also" seems out of place. Using "however" might carry the meaning that although it would solve the problem, you don't want to pay for it.
"Well, that’s quite sad; however, I don’t want to purchase the premium version."

I hope many people will write their storyies in my mother tongue and help me to write my story in English too!

Many people, each one has a story, so they all have stories.

So, I tried to write my diary as usual, and there was an alert popthat popped up:

Since I joined this website, I correct Korean sentences every day wthat I see them.

However, unfortunately, Korean is not a popular language ion this website, so there is limited number of articles I can help to correct.

It's better to specify *how* you helped.

If this system is continuing, I might loste my strikeeak..

strike =
1) what you get in baseball or any other game, when you make a mistake
2) OR a mistake in general
(also other meanings)

streak = doing something non-stop

well, that’s quite sad, but I also don’t want to purchase the premium version.

Better to include / specify *what* you purchase, the object of the verb.