Cisco 1941 - No Internet Access (LAN)

[buzzhani1]

Hello,

My LAN network abruptly stopped connecting to the internet. I have no idea why and it's frustrating. Some devices cannot even connect to the LAN network talk more of the internet. Attached here is the config. I use a cisco 1941 router, which is connected to two ISPs. One primary and one secondary. There's a NAT failover configured on this router also. 

I don't know if this is relevant but on reloading the router i get the message: "unable to open nvram:/ifIndex-table". What could be the issue.

Thanks a whole lot in advance.

[rikshit4aggarwal]

These 3 commands are not needed

access-list 10 permit 192.168.0.0 0.0.0.255

ip nat pool Vadotel 42.74.20.58 42.74.20.58 netmask 255.255.255.0
ip nat inside source list 10 pool Vadotel overload