[Bug] Anthropic API Error: Long context beta access revoked for eligible subscription

Bug Description
i was able to access 1M context opus model with my plan but all of a sudden its not working. its giving me this error: API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The long context beta is not yet available for this subscription."},"request_id":"req_011CYRQCm6X1keZLRqVa5Pgq"}

Environment Info

• Platform: darwin
• Terminal: vscode
• Version: 2.1.50
• Feedback ID: 9c9f09c9-ced6-4899-bb3f-3f10d7b1dc5f

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/nikhilsharma/.local/share/claude/versions/2.1.50 (expected in multi-process scenarios)\n    at OzR (/$bunfs/root/claude:2600:2098)\n    at SbA (/$bunfs/root/claude:2600:1209)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-23T17:32:20.293Z"},{"error":"Error: Plugin pyright-lsp has an invalid manifest file at /Users/nikhilsharma/.claude/plugins/cache/claude-plugins-official/pyright-lsp/1.0.0/.claude-plugin/plugin.json.\n\nValidation errors: : Unrecognized keys: \"source\", \"category\", \"strict\"\n\nPlease fix the manifest or remove it. The plugin cannot load with an invalid manifest.\n    at UUR (/$bunfs/root/claude:2501:11033)\n    at async e2B (/$bunfs/root/claude:2509:378)\n    at async LA8 (/$bunfs/root/claude:2509:8500)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-23T17:32:20.310Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The long context beta is not yet available for this subscription.\"},\"request_id\":\"req_011CYRQBGrce8JwDqeeZphMU\"}\n    at generate (/$bunfs/root/claude:262:28230)\n    at makeRequest (/$bunfs/root/claude:301:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-23T17:32:23.918Z"},{"error":"Error: Failed to delete keychain entry\n    at eUB (/$bunfs/root/claude:2601:6910)\n    at async nRD (/$bunfs/root/claude:6103:685)\n    at async lzA (/$bunfs/root/claude:6103:589)\n    at async qET (/$bunfs/root/claude:2111:2222)\n    at async startOAuthFlow (/$bunfs/root/claude:2111:3618)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-23T17:32:38.606Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The long context beta is not yet available for this subscription.\"},\"request_id\":\"req_011CYRQCm6X1keZLRqVa5Pgq\"}\n    at generate (/$bunfs/root/claude:262:28230)\n    at makeRequest (/$bunfs/root/claude:301:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-23T17:32:44.020Z"}]