memory error

Hello team,

we were facing the below error and we lost the connection to all vips and making primary to force offline all the connection restored. any idea

 01 :03:51 slot1/Device-1 err tmm[10168]: 01010004:3: Memory allocation failed: ssl_hs_m
 01 :03:51 slot1/Device-1 err tmm[10168]: 01010004:3: Memory allocation failed: ssl_hs_m
 01 :03:51 slot1/Device-1 err tmm[10168]: 01010004:3: Memory allocation failed: ssl_hs_m
 01 :03:51 slot1/Device-1 err tmm[10168]: 01010004:3: Memory allocation failed: ssl_hs_m
 01 :03:51 slot1/Device-1 err tmm[10168]: 01010004:3: Memory allocation failed: ssl_hs_m
 01 :03:51 slot1/Device-1 err tmm[10168]: 01010004:3: Per-invocation log rate exceeded; throttling.
 01 :03:52 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 78 Connections killed
 01 :03:54 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 72 Connections killed
 01 :03:55 slot1/Device-1 warning tmm[10168]: 011e0001:4: Limiting open port RST response from 501 to 500 packets/sec
 01 :03:56 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 49 Connections killed
 01 :03:57 slot1/Device-1 notice mcpd[7113]: 0107143c:5: Connection to CMI peer 192.168.10.20 has been removed
 01 :03:57 slot1/Device-1 notice mcpd[7113]: 0107143a:5: CMI reconnect timer: enabled
 01 :03:57 slot1/Device-1 notice mcpd[7113]: 01071431:5: Attempting to connect to CMI peer 192.168.10.20 port 6699
 01 :03:57 slot1/Device-1 err mcpd[7113]: 0107142f:3: Can't connect to CMI peer 192.168.10.20, port:6699, Transport endpoint is not connected
 01 :03:58 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 32 Connections killed
 01 :04:00 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 25 Connections killed
 01 :04:02 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 37 Connections killed
 01 :04:02 slot1/Device-1 notice mcpd[7113]: 01071431:5: Attempting to connect to CMI peer 192.168.10.20 port 6699
 01 :04:02 slot1/Device-1 notice mcpd[7113]: 01071432:5: CMI peer connection established to 192.168.10.20 port 6699
 01 :04:02 slot1/Device-1 notice mcpd[7113]: 0107143c:5: Connection to CMI peer 192.168.10.20 has been removed
 01 :04:04 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 26 Connections killed
 01 :04:06 slot1/Device-1 warning tmm[10168]: 011e0003:4: Aggressive mode sweeper: 34 Connections killed
 01 :04:07 slot1/Device-1 notice mcpd[7113]: 01071431:5: Attempting to connect to CMI peer 192.168.10.20 port 6699
 01 :04:07 slot1/Device-1 notice mcpd[7113]: 01071432:5: CMI peer connection established to 192.168.10.20 port 6699