Anthropic API Rate Limit (529) After Plan Upgrade

Bug Description
API 529 Error. today I upgraded to the 200 max plan and start to get this error \
would you please let me know why this error happen to me

Environment Info

• Platform: darwin
• Terminal: cursor
• Version: 1.0.56
• Feedback ID: bd4a1379-2292-4b39-a9c7-eaa8f260635a

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:882:11)\n    at execSync (node:child_process:954:15)\n    at A7 (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:797:5848)\n    at file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:709:48013\n    at Q (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:609:14408)\n    at fY (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:709:45724)\n    at QK (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:709:44590)\n    at SB (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:709:50639)","timestamp":"2025-07-21T07:03:56.967Z"},{"error":"Error: ENOENT: no such file or directory, open '/proc/version'\n    at Module.readFileSync (node:fs:442:20)\n    at Object.readFileSync (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:615:7077)\n    at file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:615:8638\n    at Q (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:609:14408)\n    at kT4 (file:///Users/mdshahabulalam/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:709:62815)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-07-21T07:03:57.488Z"}]