The %TUN-5-RECURDOWN: Tunnel0 temporarily disabled due to recursive routing error message means that the generic routing encapsulation (GRE) tunnel router has discovered a recursive routing problem. This condition is usually due to one of these causes:
+ A misconfiguration that causes the router to try to route to the tunnel destination address using the tunnel interface itself (recursive routing)
+ A temporary instability caused by route flapping elsewhere in the network Reference:
eigrp/22327-gre-flap.html

We can remote upgrades WAN Edge, vSmart and vBond in vManage.
https://sdwan-docs.cisco.com/Product_Documentation/vManage_Help/Release_18.4/Maintenance/Software_Upgrade

Explanation
JSON syntax structure: + uses curly braces {} to hold objects and square brackets [] to hold arrays + JSON data is written as key/value pairs + A key/value pair consists of a key (must be a string in double quotation marks ""), followed by a colon :, followed by a value. For example: "name":"John" + Each key must be unique + Values must be of type string, number, object, array, boolean or null + Multiple key/value within an object are separated by commas , JSON can use arrays. Arrays are used to store multiple values in a single variable. For example:
{
"name":"John",
"age":30,
"cars":[ "Ford", "BMW", "Fiat"]
}
In the above example, "cars" is an array which contains three values "Ford", "BMW" and "Fiat".
Note: Although our correct answer above does not have curly braces to hold objects but it is still the best choice here.