Error:undefined trying to swap / incorrect calculations

[mrtdlgc]

When I try to swap let's say $fox to xdai using Honeyswap, I get the following error.

This error prevents Metamask prompt to show up as well.

Additionally, it seems like the calculations are also off in the following example:

It should be the other way round.

Not sure if it is an error due to the frontend because I also get the same error on https://swapr.eth.limo/#/swap?chainId=100 when the transaction is to follow the route through honeyswap.