Sandstorm Mongodb crashes when user attempts login

2017-08-23T00:36:35.999+0000 [conn1] end connection 127.0.0.1:43110 (3 connections now open)
^[[B2017-08-23T00:37:05.988+0000 [conn4] uh oh: 4927080
2017-08-23T00:37:05.988+0000 [conn4] local.oplog.rs Assertion failure n >= 0 && n < static_cast<int>(_files.size()) src/mongo/db/storage/extent_manager.cpp 109
2017-08-23T00:37:06.000+0000 [conn4] local.oplog.rs 0xff19a6 0xf9b8f2 0xf84087 0xdacb78 0xdad2dd 0xdd55e6 0xdd5b83 0xdd6998 0xddd166 0xddd1e7 0xde50f2 0xde4e4a 0x8f6e3d 0xd351d5 0xd3413d 0xbb9901 0xbc0af7 0x9ebe30 0x9ee39d 0x9eef7a
 /bin/mongod(_ZN5mongo15printStackTraceERSo+0x26) [0xff19a6]
 /bin/mongod(_ZN5mongo10logContextEPKc+0x1a2) [0xf9b8f2]
 /bin/mongod(_ZN5mongo12verifyFailedEPKcS1_j+0x1a7) [0xf84087]
 /bin/mongod(_ZNK5mongo13ExtentManager12_getOpenFileEi+0xc8) [0xdacb78]
 /bin/mongod(_ZNK5mongo13ExtentManager9recordForERKNS_7DiskLocE+0x1d) [0xdad2dd]
 /bin/mongod(_ZNK5mongo16NamespaceDetails11inCapExtentERKNS_7DiskLocE+0x26) [0xdd55e6]
 /bin/mongod(_ZN5mongo16NamespaceDetails10__capAllocEi+0x63) [0xdd5b83]
 /bin/mongod(_ZN5mongo16NamespaceDetails11cappedAllocEPNS_10CollectionERKNS_10StringDataEi+0x388) [0xdd6998]
 /bin/mongod(_ZN5mongo16NamespaceDetails6_allocEPNS_10CollectionERKNS_10StringDataEi+0x16) [0xddd166]
 /bin/mongod(_ZN5mongo16NamespaceDetails5allocEPNS_10CollectionERKNS_10StringDataEi+0x57) [0xddd1e7]
 /bin/mongod(_ZN5mongo19CappedRecordStoreV111allocRecordEii+0x32) [0xde50f2]
 /bin/mongod(_ZN5mongo17RecordStoreV1Base12insertRecordEPKNS_9DocWriterEi+0x5a) [0xde4e4a]
 /bin/mongod(_ZN5mongo10Collection14insertDocumentEPKNS_9DocWriterEb+0x6d) [0x8f6e3d]
 /bin/mongod() [0xd351d5]
 /bin/mongod(_ZN5mongo5logOpEPKcS1_RKNS_7BSONObjEPS2_PbbPS3_+0x5d) [0xd3413d]
 /bin/mongod(_ZN5mongo6updateERKNS_13UpdateRequestEPNS_7OpDebugEPNS_12UpdateDriverEPNS_14CanonicalQueryE+0x17a1) [0xbb9901]
 /bin/mongod(_ZN5mongo14UpdateExecutor7executeEv+0x67) [0xbc0af7]
 /bin/mongod() [0x9ebe30]
 /bin/mongod(_ZN5mongo18WriteBatchExecutor10execUpdateERKNS_12BatchItemRefEPNS_7BSONObjEPPNS_16WriteErrorDetailE+0x7d) [0x9ee39d]
 /bin/mongod(_ZN5mongo18WriteBatchExecutor11bulkExecuteERKNS_21BatchedCommandRequestEPSt6vectorIPNS_19BatchedUpsertDetailESaIS6_EEPS4_IPNS_16WriteErrorDetailESaISB_EE+0x24a) [0x9eef7a]
2017-08-23T00:37:06.000+0000 [conn4] SEVERE: Fatal DBException in logOp(): 0 assertion src/mongo/db/storage/extent_manager.cpp:109
2017-08-23T00:37:06.008+0000 [conn4] SEVERE: terminate() called, printing stack (if implemented for platform):
0xff19a6 0xff12a0 0x7f77a7689986 0x7f77a76899d1 0xd3427b 0xbb9901 0xbc0af7 0x9ebe30 0x9ee39d 0x9eef7a 0x9ef78d 0x9f2aef 0xa024b4 0xa03696 0xa0479e 0xc83b6a 0xb2e074 0xb2f84c 0x7fc41f 0xfacb59
 /bin/mongod(_ZN5mongo15printStackTraceERSo+0x26) [0xff19a6]
 /bin/mongod() [0xff12a0]
 /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x8f986) [0x7f77a7689986]
 /usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x8f9d1) [0x7f77a76899d1]
 /bin/mongod(_ZN5mongo5logOpEPKcS1_RKNS_7BSONObjEPS2_PbbPS3_+0x19b) [0xd3427b]
 /bin/mongod(_ZN5mongo6updateERKNS_13UpdateRequestEPNS_7OpDebugEPNS_12UpdateDriverEPNS_14CanonicalQueryE+0x17a1) [0xbb9901]
 /bin/mongod(_ZN5mongo14UpdateExecutor7executeEv+0x67) [0xbc0af7]
 /bin/mongod() [0x9ebe30]
 /bin/mongod(_ZN5mongo18WriteBatchExecutor10execUpdateERKNS_12BatchItemRefEPNS_7BSONObjEPPNS_16WriteErrorDetailE+0x7d) [0x9ee39d]
 /bin/mongod(_ZN5mongo18WriteBatchExecutor11bulkExecuteERKNS_21BatchedCommandRequestEPSt6vectorIPNS_19BatchedUpsertDetailESaIS6_EEPS4_IPNS_16WriteErrorDetailESaISB_EE+0x24a) [0x9eef7a]
 /bin/mongod(_ZN5mongo18WriteBatchExecutor12executeBatchERKNS_21BatchedCommandRequestEPNS_22BatchedCommandResponseE+0x68d) [0x9ef78d]
 /bin/mongod(_ZN5mongo8WriteCmd3runERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb+0x42f) [0x9f2aef]
 /bin/mongod(_ZN5mongo12_execCommandEPNS_7CommandERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb+0x34) [0xa024b4]
 /bin/mongod(_ZN5mongo7Command11execCommandEPS0_RNS_6ClientEiPKcRNS_7BSONObjERNS_14BSONObjBuilderEb+0xaa6) [0xa03696]
 /bin/mongod(_ZN5mongo12_runCommandsEPKcRNS_7BSONObjERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x29e) [0xa0479e]
 /bin/mongod(_ZN5mongo11newRunQueryERNS_7MessageERNS_12QueryMessageERNS_5CurOpES1_+0xa6a) [0xc83b6a]
 /bin/mongod() [0xb2e074]
 /bin/mongod(_ZN5mongo16assembleResponseERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE+0x62c) [0xb2f84c]
 /bin/mongod(_ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE+0xef) [0x7fc41f]
 /bin/mongod(_ZN5mongo17PortMessageServer17handleIncomingMsgEPv+0x5c9) [0xfacb59]