Failed test were found and 'fail-on-error' option is set to true

StackExchange.Redis.RedisTimeoutException : The message timed out in the backlog attempting to send because no connection became available, command=PING, timeout: 400, inst: 0, qu: 1, qs: 0, aw: False, bw: Inactive, rs: NotStarted, ws: Initializing, last-in: 0, cur-in: 0, sync-ops: 1, async-ops: 0, serverEndpoint: 127.0.0.1:6379, conn-sec: n/a, aoc: 0, mc: 1/1/0, mgr: 10 of 10 available, clientName: fv-az1911-722(SE.Redis-v2.8.28.38027), IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=8,Free=32759,Min=4,Max=32767), POOL: (Threads=8,QueuedItems=55,CompletedItems=286,Timers=53), v: 2.8.28.38027 (Please take a look at this article for some common client-side issues that can cause timeouts: https://stackexchange.github.io/StackExchange.Redis/Timeouts)