For ethereum classic, I can not install the mist wallet on pc, error.
any error has a reason and can be fixed, consult the wallet creator to find a fix. it may even have a simple solution. the links are usually in the site where you download the wallet.
I can use the web wallet?
I saw who has jax,Which one is best?
as long as you are not the one holding the private keys, or generating them with a legit wallet you are taking risks.
also it is always preferred that if you want to store large amounts always do it in a cold storage (generating the wallet/keys offline)