Help! Hair dissolves from the ends

Hi, I’ve done no poo for 1.5 years and it was all good until recently, when my hair started to kind of dissolve from the ends. The ends are probably just breaking off. I had used clay every 10-14 days for most of the time, but stopped a couple of months ago and did just water.
Has anyone ever experienced this? Any tipps or recommendations? Are you using coconut oil to keep your hair from getting dry?
Thank you for your help!