This is absolutely normal.
Honey crystallises because of the high content of grape sugar (glucose), one of the most important components in honey, which is produced from the nectar that bees collect from plants.
There are also other sugars in honey, such as turanose, maltose, isomaltose, trehalose, erlose and sucrose, but they do not crystallise.
The crystallisation of the honey is a natural process
and does not affect the taste or the nutrients of the honey.