Panic: Check potential BUG While running with the simulator

[eranra]

0:00 DstNet:15 DstPort:80 DstVlan:0 EgressVrfID:0 Etype:2048 FlowDirection:0 ForwardingStatus:0 FragmentId:0 FragmentOffset:0 HasMPLS:false IPTTL:0 IPTos:0 IPv6FlowLabel:0 IcmpCode:0 IcmpType:0 InIf:0 IngressVrfID:0 MPLS1Label:0 MPLS1TTL:0 MPLS2Label:0 MPLS2TTL:0 MPLS3Label:0 MPLS3TTL:0 MPLSCount:0 MPLSLastLabel:0 MPLSLastTTL:0 NextHop:rMcPAQ== NextHopAS:0 OutIf:0 Packets:803 Proto:6 SamplerAddress:fwAAAQ== SamplingRate:0 SequenceNum:91 SrcAS:43476 SrcAddr:112.10.20.10 SrcMac:00:00:00:00:00:00 SrcNet:2 SrcPort:40 SrcVlan:0 TCPFlags:0 TimeFlowEnd:1.642509669e+09 TimeFlowStart:1.642509669e+09 TimeReceived:1.642509669e+09 Type:2 VlanId:0]"
time="2022-01-18T12:41:29Z" level=debug msg="transformRule = {DstAddr dstIP}"
time="2022-01-18T12:41:29Z" level=debug msg="transformRule = {SrcAddr srcIP}"
time="2022-01-18T12:41:29Z" level=debug msg="transformRule = {Bytes bytes}"
time="2022-01-18T12:41:29Z" level=debug msg="transformRule = {DstPort dstPort}"
time="2022-01-18T12:41:29Z" level=debug msg="transformRule = {Proto proto}"
time="2022-01-18T12:41:29Z" level=debug msg="Transform.GenericMap = map[bytes:987 dstIP:172.30.190.10 dstPort:80 proto:6 srcIP:112.10.20.10]"
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x14bfeb4]

goroutine 1 [running]:
github.ibm.com/MCNM/observability/flowlogs2metrics/pkg/pipeline/transform.ExecuteTransforms({0xc00041c160, 0x2, 0x290}, 0x16)
/app/pkg/pipeline/transform/transform.go:91 +0x54
github.ibm.com/MCNM/observability/flowlogs2metrics/pkg/pipeline.Pipeline.Process({{0x1a77760, 0xc0003cdea0}, {0x1a77680, 0x2771ef0}, {0xc00041c160, 0x2, 0x2}, {0x1a77700, 0xc0003f4ba0}, {0x1a776e0, ...}, ...}, ...)
/app/pkg/pipeline/pipeline.go:156 +0x177
github.ibm.com/MCNM/observability/flowlogs2metrics/pkg/pipeline/ingest.(*ingestCollector).processLogLines(0xc0003cdea0, 0xc0004171f0)
/app/pkg/pipeline/ingest/ingest_collector.go:151 +0xf5
github.ibm.com/MCNM/observability/flowlogs2metrics/pkg/pipeline/ingest.(*ingestCollector).Ingest(0xc0003cdea0, 0x4)
/app/pkg/pipeline/ingest/ingest_collector.go:100 +0x85
github.ibm.com/MCNM/observability/flowlogs2metrics/pkg/pipeline.(*Pipeline).Run(...)
/app/pkg/pipeline/pipeline.go:145
main.run()
/app/cmd/flowlogs2metrics/main.go:168 +0x167
main.glob..func1(0x272aea0, {0x186b22d, 0x1, 0x1})
/app/cmd/flowlogs2metrics/main.go:47 +0x17
github.com/spf13/cobra.(*Command).execute(0x272aea0, {0xc0000aa010, 0x1, 0x1})
/go/pkg/mod/github.com/spf13/cobra@v1.2.1/command.go:860 +0x5f8
github.com/spf13/cobra.(*Command).ExecuteC(0x272aea0)
/go/pkg/mod/github.com/spf13/cobra@v1.2.1/command.go:974 +0x3bc
github.com/spf13/cobra.(*Command).Execute(...)
/go/pkg/mod/github.com/spf13/cobra@v1.2.1/command.go:902
main.main()
/app/cmd/flowlogs2metrics/main.go:145 +0x25