Mining DOGE with cpuminer-opt, no submitted shares

[2021-12-11 14:59:42] CPU temp: curr 0 C max 0, Freq: 0.000/0.000 GHz
...
[2021-12-11 15:04:06] New Work: Block 4016073, Net diff 4.5503e+06, Job 638a
[2021-12-11 15:04:20] stratum_recv_line failed
[2021-12-11 15:04:20] Stratum connection reset
[2021-12-11 15:04:21] Stratum extranonce1= 700559b2, extranonce2 size= 4
[2021-12-11 15:04:21] Stratum connection established
[2021-12-11 15:04:21] New Block 4016074, Net diff 4.964e+06, Job 638b
                  Diff: Net 4.964e+06, Stratum 16384, Target 0.25
                  TTF @ 17.19 kh/s: Block 39337y282d, Share 17h21m
                  Net hash rate (est) 245.06 Th/s
[2021-12-11 15:05:15] CPU temp: curr 0 C max 0, Freq: 0.000/0.000 GHz
[2021-12-11 15:05:15] scrypt: stratum.aikapool.com:7915
                  Periodic Report     5m33s        10m14s
                  Share rate        0.00/min     0.00/min
                  Hash rate          0.00h/s      0.00h/s   (15.58kh/s)
                  Submitted             0            0
                  Accepted              0            0        0.0%
                  Stratum errors                     1
                  Hi/Lo Share Diff  0 /  9e+99
[2021-12-11 15:05:15] New Work: Block 4016074, Net diff 4.964e+06, Job 638c

Ignore the reported CPU speed and CPU temperature. Any idea as to why there are no hashes being mined or submitted? The CPU is 2.6GHz, 4 cores, 64-bit.

JayDDee / cpuminer-opt

Mining DOGE with cpuminer-opt, no submitted shares #353