I was mining on westhash for more than half of a year and everything was great.
But I can't connect to nicehash and westhash for last 3 days.
My address: 1D3TzzPz54yS45inm5nbyWY4BVJWYPYX5J

I use sgminer 5.1.0:

[04:04:05] Pool: 1  URL: http://stratum.nicehash.com:4336  User: 1D3TzzPz54yS45inm5nbyWY4BVJWYPYX5J.a  Password: f0=0;f2=0;f3=4;f4=2
.919;f5=0;f6=0;f7=0;f8=0.28
[04:04:05] Pool: 2  URL: http://stratum.westhash.com:4341  User: 1D3TzzPz54yS45inm5nbyWY4BVJWYPYX5J.a  Password: f0=0;f2=0;f3=4;f4=2
.919;f5=0;f6=0;f7=0;f8=0.28
[04:04:05] Press any key to exit, or sgminer will try again in 15s.
[04:04:06] X13 slow/down or URL or credentials invalid
[04:04:06] Neo slow/down or URL or credentials invalid

Please fix this issue