I cant find the courses like cryptography block chain data structures or R programming courses

Question

they used to be here until like 2 days before but now i cant find them anywhere on the catalogue section

Answer 1

All courses are available.
Cryptography, Block chain they will be in community created lesson's.

To get access for old course check the comment section of this code :

https://code.sololearn.com/ci2cUJH21G7f/?ref=app

If you are unsatisfied with my answer ask your question clearly with description.

Answer 2

Swaroop Chandra
Muhd Khairul Amirin

Because of migration you are facing issue.

In Learn section you will get old course's with updated version.

Answer 3

Swaroop Chandra Same goes to me. Only today, I cannot access them