Hi there!

There were a number of spikes of very long block times when the coin was first introduced. The highest recorded ever was on 20 August 2017, where it took 3 hours, 25 minutes and 42 seconds before the next block was found.

A more recent spike, although far less impressive, was on 09 April 2020, where it took only just over 26 minutes.

The difficulty of Bitcoin mining can vary depending on a few criteria. For example, when the hash rate in the network increases, if the blocks start to be found in less than 10 minutes, the difficulty level of the Bitcoin network increases.

Otherwise, if the time of finding new blocks increases to over 10 minutes, the difficulty level of the Bitcoin network decreases, making it easier to extract new blocks. In the Bitcoin protocol, the difficulty level adjustment is carried out through a proof of work algorithm called "proof of work".

the system can get stuck sometimes.
It is better to wait for a while

max aprox is 45 min...