Seeing Error 15 on the Pokémon Center website is essentially a “Security Block.” It means the site’s firewall (Imperva) has flagged your IP address or browsing behavior as suspicious—usually mistaking you for a bot.
Since today is February 26, 2026, traffic is likely very high due to fans preparing for tomorrow’s 30th Anniversary (Pokémon Day) and the massive LEGO Pokémon launch.
Quick Fixes to Get Back In
Switch to Mobile Data: This is the most effective fix. If you are on Wi-Fi, turn it off and use your phone’s 5G/LTE. This gives you a new IP address that isn’t blocked.
Disable VPNs & Ad-Blockers: The Pokémon Center site is notoriously aggressive against VPNs and privacy extensions (like uBlock Origin or Dark Reader). Turn them off and refresh.
Clear “Last Hour” Cache: Don’t clear your whole history. Just clear the Cookies and Cache for the “Last Hour” in your browser settings. This removes the specific “blocked” session cookie.
Use a Different Browser: If you’re on Chrome, try Firefox or Safari. Each browser handles the security handshake differently.
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Why is this happening today?
Anti-Bot Protection: With the LEGO Mini Pokémon Center and the 30th Anniversary drops happening at midnight (Feb 27), the site has cranked up its security to stop scalper bots.
Rapid Refreshing: If you’ve been refreshing the page to see if the new plushies (like the 31-inch Umbreon/Espeon) or LEGO sets are live, the site may have flagged you for “unnatural” speed.
Regional Blocking: The Pokémon Center officially only serves the US, Canada, UK, Australia, and New Zealand, accessing the site without a local IP can sometimes trigger this error automatically.
If all else fails:
Wait one hour without touching the site. Most “Error 15” blocks are temporary and will reset automatically if no further “suspicious” requests are made from your IP.
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