Solutions to Error 1B for those on EUNE
List starting with simple solutions first.
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Restart the client
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Switch your region to EUW then back to EUNE
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Run client as Administrator: Right click LOL Logo > Properties > Run as Administrator > Apply
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Verify your anti-virus protection is not blocking LOL client
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Hextech Repair Tool via Force Repair/Repatch; https://support.riotgames.com/hc/en-us/articles/224826367-Automated-Troubleshooting-Hextech-Repair-Tool
