InfluxDB Error: Server Error

Hi, i have a big problem, i cant connect my influxdb with G

rafana.
I pulled the data “home_assistant” database in influx, but i can’t connect Grafana.

Here is my log.:
“[18/Feb/2020:10:01:56 +0100] 500 192.168.88.14, 172.30.32.1(172.30.32.2) GET /api/datasources/proxy/2/query?db=home-assistant&q=SHOW+RETENTION+POLICIES+on+%22home-assistant%22&epoch=ms HTTP/1.1 (Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36)
[18/Feb/2020:10:01:56 +0100] 200 192.168.88.14, 172.30.32.1(172.30.32.2) PUT /api/datasources/2 HTTP/1.1 (Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36)
[18/Feb/2020:10:01:56 +0100] 200 192.168.88.14, 172.30.32.1(172.30.32.2) GET /api/frontend/settings HTTP/1.1 (Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36)
[18/Feb/2020:10:01:57 +0100] 200 192.168.88.14, 172.30.32.1(172.30.32.2) GET /api/datasources/2 HTTP/1.1 (Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36)
t=2020-02-18T10:01:57+0100 lvl=eror msg=“Request error” logger=context userId=1 orgId=1 uname=admin error=“runtime error: invalid memory address or nil pointer dereference” stack=”/usr/local/go/src/runtime/panic.go:199 (0x44d65b)\n/usr/local/go/src/runtime/signal_unix.go:394 (0x44d498)\n/go/src/github.com/grafana/grafana/pkg/api/pluginproxy/ds_proxy.go:225 (0x10245fd)\n/go/src/github.com/grafana/grafana/pkg/api/pluginproxy/ds_proxy.go:81 (0x1023aa2)\n/go/src/github.com/grafana/grafana/pkg/api/dataproxy.go:35 (0x1435f98)\n/usr/local/go/src/reflect/value.go:460 (0x4989d5)\n/usr/local/go/src/reflect/value.go:321 (0x498193)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:177 (0x975229)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:137 (0x974bd9)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:121 (0x9761c8)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:112 (0xdb2955)\n/go/src/github.com/grafana/grafana/pkg/middleware/request_tracing.go:25 (0xdb2948)\n/usr/local/go/src/reflect/value.go:460 (0x4989d5)\n/usr/local/go/src/reflect/value.go:321 (0x498193)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:177 (0x975229)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:137 (0x974bd9)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:121 (0x9761c8)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:112 (0xdb214c)\n/go/src/github.com/grafana/grafana/pkg/middleware/request_metrics.go:17 (0xdb2137)\n/usr/local/go/src/reflect/value.go:460 (0x4989d5)\n/usr/local/go/src/reflect/value.go:321 (0x498193)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:177 (0x975229)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:137 (0x974bd9)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:121 (0x9761c8)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:112 (0xdb205f)\n/go/src/github.com/grafana/grafana/pkg/middleware/recovery.go:147 (0xdb204d)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:79 (0x976070)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:157 (0x974f39)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:135 (0x974cc8)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:121 (0x9761c8)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:112 (0xdaf61b)\n/go/src/github.com/grafana/grafana/pkg/middleware/logger.go:34 (0xdaf606)\n/usr/local/go/src/reflect/value.go:460 (0x4989d5)\n/usr/local/go/src/reflect/value.go:321 (0x498193)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:177 (0x975229)\n/go/src/github.com/grafana/grafana/vendor/github.com/go-macaron/inject/inject.go:137 (0x974bd9)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/context.go:121 (0x9761c8)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/router.go:187 (0x987326)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/router.go:303 (0x981bf5)\n/go/src/github.com/grafana/grafana/vendor/gopkg.in/macaron.v1/macaron.go:220 (0x97b0ba)\n/usr/local/go/src/net/http/server.go:2802 (0x707bc3)\n/usr/local/go/src/net/http/server.go:1890 (0x703564)\n/usr/local/go/src/runtime/asm_amd64.s:1357 (0x467db0)\n"
t=2020-02-18T10:01:57+0100 lvl=eror msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=GET path=/api/datasources/proxy/2/query status=500 remote_addr=“192.168.88.14, 172.30.32.1” time_ms=12 size=122 referer=http://192.168.88.42:8123/api/hassio_ingress/EIokksTROJiGDGIaKg4cxIEVFAFJVJCeZh9S79AcC-k/datasources/edit/2/
[18/Feb/2020:10:01:57 +0100] 500 192.168.88.14, 172.30.32.1(172.30.32.2) GET /api/datasources/proxy/2/query?db=home-assistant&q=SHOW+RETENTION+POLICIES+on+%22home-assistant%22&epoch=ms HTTP/1.1 (Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36)"

Can you help me anyone, i probe a week, but i can’t solved this problem.
Many Thanks Zsolt