My ficus has lost its leaves
I bought a ficus benjamin 3 years ago.
I kept it outside in summer and inside in winter for two years and everything was ok. The ficus was very healty.
Last year something went wrong: when I put it inside in september, it started loosing its leaves and it never stopped up to now.
Now it has only 10-15 leaves. I repotted it few days ago.
Any esplanation of what happened and any suggestion for the future?