[BUG] bifrost fail to get mimir

Bifrost fail to get mimir settings

{"level":"error","service":"bifrost","module":"blockscanner","chain":"LTC","error":"fail to unmarshal mimir: json: cannot unmarshal number into Go value of type string","time":"2021-02-16T04:32:36Z","message":"fail to get mimir setting"}
{"level":"error","service":"bifrost","module":"blockscanner","chain":"BNB","error":"fail to unmarshal mimir: json: cannot unmarshal number into Go value of type string","time":"2021-02-16T04:32:36Z","message":"fail to get mimir setting"}
{"level":"error","service":"bifrost","module":"blockscanner","chain":"BCH","error":"fail to unmarshal mimir: json: cannot unmarshal number into Go value of type string","time":"2021-02-16T04:32:36Z","message":"fail to get mimir setting"}
^Cmake: *** [logs-bifrost] Interrupt: 2