[Bug] Anthropic API Error: Internal Server Error (500)

Bug Description
Getting API Error: API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca222sAQcLxZn4VTQvYjs"}

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.104
• Feedback ID: dad9266c-0d15-4166-b9f2-836c66231550

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/chris/.local/share/claude/versions/2.1.104 (expected in multi-process scenarios)\n    at Mc_ (/$bunfs/root/src/entrypoints/cli.js:2836:2153)\n    at he6 (/$bunfs/root/src/entrypoints/cli.js:2836:1233)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T18:58:52.072Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sourcegraph invalid: Missing environment variables: SOURCEGRAPH_ENDPOINT, SOURCEGRAPH_ACCESS_TOKEN\n    at cDH (/$bunfs/root/src/entrypoints/cli.js:1555:33932)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T18:58:52.708Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server greptile invalid: Missing environment variables: GREPTILE_API_KEY\n    at cDH (/$bunfs/root/src/entrypoints/cli.js:1555:33932)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T18:58:52.708Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server greptile invalid: Missing environment variables: GREPTILE_API_KEY\n    at cDH (/$bunfs/root/src/entrypoints/cli.js:1555:33932)\n    at async W (/$bunfs/root/src/entrypoints/cli.js:6003:10596)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T18:58:55.843Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sourcegraph invalid: Missing environment variables: SOURCEGRAPH_ENDPOINT, SOURCEGRAPH_ACCESS_TOKEN\n    at cDH (/$bunfs/root/src/entrypoints/cli.js:1555:33932)\n    at async W (/$bunfs/root/src/entrypoints/cli.js:6003:10596)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T18:58:55.843Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server greptile invalid: Missing environment variables: GREPTILE_API_KEY\n    at cDH (/$bunfs/root/src/entrypoints/cli.js:1555:33932)\n    at async Z (/$bunfs/root/src/entrypoints/cli.js:6003:11366)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T18:58:55.850Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server sourcegraph invalid: Missing environment variables: SOURCEGRAPH_ENDPOINT, SOURCEGRAPH_ACCESS_TOKEN\n    at cDH (/$bunfs/root/src/entrypoints/cli.js:1555:33932)\n    at async Z (/$bunfs/root/src/entrypoints/cli.js:6003:11366)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T18:58:55.850Z"},{"error":"Error: Failed to create shell snapshot: Command failed: /bin/zsh -c -l SNAPSHOT_FILE=/Users/chris/.config/claude/claude-max/shell-snapshots/snapshot-zsh-1776020433384-jaz1ev.sh\n      source \"/Users/chris/.zshrc\" < /dev/null\n\n      # First, create/clear the snapshot file\n      echo \"# Snapshot file\" >| \"$SNAPSHOT_FILE\"\n\n      # When this file is sourced, we first unalias to avoid conflicts\n      # This is necessary because aliases get \"frozen\" inside function definitions at definition time,\n      # which can cause unexpected behavior when functions use commands that conflict with aliases\n      echo \"# Unset all aliases to avoid conflicts with functions\" >> \"$SNAPSHOT_FILE\"\n      echo \"unalias -a 2>/dev/null || true\" >> \"$SNAPSHOT_FILE\"\n\n      \n      echo \"# Functions\" >> \"$SNAPSHOT_FILE\"\n\n      # Force autoload all functions first\n      typeset -f > /dev/null 2>&1\n\n      # Now get user function names - filter completion functions (single underscore prefix)\n      # but keep double-underscore helpers (e.g. __zsh_like_cd from mise, __pyenv_init)\n      typeset +f | grep -vE '^_[^_]' | while read func; do\n        typeset -f \"$func\" >> \"$SNAPSHOT_FILE\"\n      done\n    \n      echo \"# Shell Options\" >> \"$SNAPSHOT_FILE\"\n      setopt | sed 's/^/setopt /' | head -n 1000 >> \"$SNAPSHOT_FILE\"\n    \n      echo \"# Aliases\" >> \"$SNAPSHOT_FILE\"\n      # Filter out winpty aliases on Windows to avoid \"stdin is not a tty\" errors\n      # Git Bash automatically creates aliases like \"alias node='winpty node.exe'\" for\n      # programs that need Win32 Console in mintty, but winpty fails when there's no TTY\n      if [[ \"$OSTYPE\" == \"msys\" ]] || [[ \"$OSTYPE\" == \"cygwin\" ]]; then\n        alias | grep -v \"='winpty \" | sed 's/^alias //g' | sed…

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