Thanks for your criticism, let me explain a few things to you:
1. Dashboard - The live Dashboard is designed to show a light-weight estimate of the last 60 seconds of your miners at a glance. It's updated by Ajax and many calculations take place on your local machine in javascript where data is fetched in the background through an JSON API. It's not designed to give you full accurate Info, for this you have the "My Workers" Tab Sometimes the Dashboards gets hit by folks who are pressing F5 a lot, due to anti-ddos the requests are throttled to 20 requests per second on the API. So if someone gets over this limit, it takes about 2-5 seconds until the throttle is released and the API is "unlocked", just wait a bit and the data will catch up.
2. Job not found. This doesn't mean the Pool has no job in the background, it means the Job you've sent wasn't found on the pool. For example I send you "Job A1" - you reply with "Job A0" then you get a "Job not found" error - you've sent a stale share from the old round. This happens VERY often with ETC/ETH/KR/SHF/ELE because of the fast block times. Other pools sometimes simply don't report the error and say "OK" but also don't count your share. If other pools accept stale shares it'll be unusable data because it's work done for a round (block) that has already passed, but, as you see, it's sometimes better (maybe) to simply be (slightly) dishonest and accept the share but discard it silently in the background All what "job not found" means is that the pool is telling you you did your work too slow, you did it for the old block which has already been found.
3. China - I wasn't aware you're located in China, but imagine your post earlier said "Pool is unreliable".. Nobody else knew you're located in China, so everyone thought the pool is generally unreliable .. Which is simply not true, I have very reliable, ddos protected and quite expensive servers in the EU and USA which run over multiple failsafe links in clustered mode. It's really, really hard to get them down, even by tough DDoS'es. If you would have told me you're in China I can set up a dedicated node for china too, let me know in which region you are and I'll find a host near you which can be used as a mirror for the pool.