Open Ledger IL
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Common problems and how to fix them

Fixes for the places people get stuck: Windows warnings, the Cloudflare token, Zero Trust, keys the installer refuses, sign-in, downloads and email.

Updated 2026-10-17

The installer

  • Windows protected your PC. Click More info, then Run anyway.
  • The antivirus removed the file. Restore it from the antivirus quarantine and allow it, or download it again from the purchase email.
  • Nothing opens after double-click. Wait 20 seconds, the file is large. The installer opens a browser tab at an address starting with http://127.0.0.1. If no tab opens, copy that address from the small black window into your browser.
  • The licence key is refused. Type it as OL-XXXX-XXXX-XXXX-XXXX, and check the tax number. The key works only for the tax number it was bought for. Reinstalling the same business with the same key is fine.

Cloudflare

  • Zone Resources is missing. It shows up only after a Zone permission row. Without a domain, skip it and use the free workers.dev address. See Create the Cloudflare API token.
  • Check token fails. The message names the missing permission. Edit the token, add the row, save, and check again.
  • Zero Trust or R2 asks for a card. Both free plans ask for a payment method and charge nothing.
  • Purchase R2 Plan. Click it and confirm the free tier. The first 10 GB a month are free.

Keys

  • A Gemini key is refused. New keys from Google AI Studio start with AQ.. The installer from version 1.6.0 of 17 October 2026 accepts them. With an older installer, pick No for expense reading and add the key afterwards, see Add or change a key.
  • An Anthropic key is refused. It starts with sk-ant-. Copy it again from console.anthropic.com.

Signing in

  • A Cloudflare page asks for an email. That is the sign-in. Type the owner email and paste the code from the email.
  • No code arrives. Check spam, and check that the email is the one given in the installer.
  • Someone else is stopped at the Cloudflare page. Add their email in Cloudflare Access, see Give your accountant access.

Downloads and email

  • The download link says it expired or ran out. Click Email me a fresh link on that page.
  • Clients get your documents in spam. See Keep them out of spam.
  • Lost the MCP token. See Connect Claude.

Tax Authority

  • ITA says reconnect. The login lasts 90 days. Open ITA and click Connect again.
  • An invoice waits for a number for 24 hours. Request the number in the Tax Authority web app and type it on the ITA page.

Still stuck? Write to us from the pricing page.

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