Error: "Too many MySQL connections".

Error "Too many MySQL connections". Needs to restart the MySQL service each time to fix it.

It seems that the  receiving  error is  due to number of MySQL connections are exceeded. You can set the maximum allowed connection in '/etc/my.cnf' (Only for Linux). Additionally you will also need to check which user is using more connections on the server. Generally this happens due to bad coding and if you are not closing MySQL connections in the scripts.