You must update your miners March 9 Monero fork. xmrig based miners must be updated to v2.13+. xmr-stak must be v2.9.0+ and must use monero algo now (and cryptonight_r algo after fork). xmrig-node-proxy must be v0.8.1+ (https://github.com/MoneroOcean/xmr-node-proxy).