Freecodecamp & Sololearn

My freecodecamp account are not linked with Sololearn. “Your username are not exist” this type of error are showing again and again.
Please provide me the step to link my account with sololearn.

Contact Sololearn regarding this problem.

The linking of Free Code Camp and Sololearn accounts is done purely by Sololearn (with FCC’s blessing). All support issues for Sololearn will have to be directed to them. From discussions I have seen between other Sololearn members, a common mistake is to provide your FCC account rather than your FCC forum account. Sololearn only links to your forum account.