Why is Yahoo email not working now?-Collection of common programming errors

I can read emails just fine. If I hit reply then the To: & Subject: bar are shorter then before. I can not attach anything and there is no box to type a message. I get two errors, Expected ‘)’ Code: 0 & ‘RTEEditor’ is undefined code: 0. How do I fix this so I can use my email again? I am not using the new beta version. Please give me any advice.

Originally posted 2013-11-09 22:59:40.