Unplug if you have connected with the VPN in the browser you are using. You will find it will be enabled then once you done. Above omega asks you enable the Jscript running tool in your browser but by default you will be added and enabled. If you did not touched it you do not need to worry about it.
Clear the browser cookies and cache you will find the blockchain wallet will works better than others.
This problem happened to me several times and this is solved."
VPN"
disable connected VPN, Clear the browser cookies and update your browser IP.
you can your browser IP using:
1. open cmd and execute this code.
2. restart PC and browser.
Here is the right solution.I am also having the same issues sometimes then I will clear browser cookies and restarting the brower worked for me.
Nowadays blockchain.info wallet facing many bug issues so I think they need to upgrade their wallet and for the users use only the updated version of browser,google chrome always work well for me so I suggest everyone use the same.
And never use blockchain mobile app they have some serious issues,when I send bitcoins on mobile app the wallet send the bitcoin to my wallet instead os sending to the recipient address but charged me trasnaction fee.