Bitcoin halving is basically Bitcoin halved to allow cryptocurrency mining to produce 50% of its global existing value.
It always happens every four years. This year in 2020, a historic moment occurred on May 12, which helped reduce the mining reward from 12.5 BTC to 6.25 blocks. Interestingly, traders and miners have adapted themselves to the new reality that bitcoin production restrictions may be the world's most valuable global priceless virtual currency. If you look at the trend of halving before, it will cause an astronomical increase in prices, which will translate to huge market fluctuations in other digital currencies including Bitcoin. According to our observations, this year’s halving of bitcoin hoccurred in the global economic collapse brought about by the terrible Covid 19 pandemic. Even so, key experts believe that bitcoin is taking on global security assets and Important value reserve.

I ordered some Ekrona 2 days ago, and they will not fill my orders, here is what they said

Hi：
I’ve checked your account ,but we found that the active orders is all right .
You’ve place 3 active orders , price is 0.00006400    0.00006500    0.00009000 ,the price grow very fast ,and your orders can’t be finished .
You can cancel your active orders and your BTC will come back to your account balance  .

IF they give me my coins, I will let everyone know, but as of right now If I was you i would not order any coins from Allcoin.com.