Is post hog API key required now ?

[esakkiraja100116]

When I saw that video you didn't configure the posthog. I thought it was optional but right i'm having validation error.
ref:
https://docs.langtrace.ai/hosting/hosting_options/docker-compose

Error while shutting down PostHog O [PostHogFetchHttpError]: HTTP error while fetching PostHog: 401
langtrace  |     at d (/app/.next/server/app/api/project/route.js:7:10732)
langtrace  |     at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
langtrace  |     at async d (/app/.next/server/app/api/project/route.js:1:1879)
langtrace  |     at async $.fetchWithRetry (/app/.next/server/app/api/project/route.js:7:10536)
langtrace  |     at async $._flush (/app/.next/server/app/api/project/route.js:7:10235) {
langtrace  |   response: Response {
langtrace  |     [Symbol(realm)]: null,
langtrace  |     [Symbol(state)]: {
langtrace  |       aborted: false,
langtrace  |       rangeRequested: false,
langtrace  |       timingAllowPassed: true,
langtrace  |       requestIncludesCredentials: true,
langtrace  |       type: 'default',
langtrace  |       status: 401,
langtrace  |       timingInfo: [Object],
langtrace  |       cacheState: '',
langtrace  |       statusText: 'Unauthorized',
langtrace  |       headersList: [HeadersList],
langtrace  |       urlList: [Array],
langtrace  |       body: [Object]
langtrace  |     },
langtrace  |     [Symbol(headers)]: HeadersList {
langtrace  |       cookies: null,
langtrace  |       [Symbol(headers map)]: [Map],
langtrace  |       [Symbol(headers map sorted)]: null
langtrace  |     }
langtrace  |   }
langtrace  | }