A piece of advice: Stop using jaxx as it's so buggy. If you still continue to, You will most likely experience the same problem again and again or maybe worse
Anyways, The typical solution that jaxx gives is to reset your cache. Here's a tutorial if you don't know how:
https://decentral.zendesk.com/hc/en-us/articles/226998948-How-do-I-perform-a-cache-reset-If you're still encountering the same problem, Contact their support. Make it concise but detailed and don't forget to mention that you've already tried resetting your cache as they tend to suggest it always. Lastly, include some proofs e.g.
screenshots, TXID etc.Submit a request here:
https://decentral.zendesk.com/hc/en-us/requests/newTwitter:
https://twitter.com/jaxx_ioReddit:
https://www.reddit.com/r/jaxx/Or you can just sweep your coins to a new wallet and say goodbye to jaxx