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ROB RUN error codes and how to fix them

Checked Nov 9, 2026 for Early Access

ROB RUN error codes start with E- and fall into five groups: network and data, game version and files, account and authorization, anti-cheat, and other. Each code links to its fix below.

Network and data

Code Meaning
E-0101 / E-0110 Can’t connect to download startup data
E-0102 Data corrupted or blocked during download
E-0124 Internal asset loading error
E-0201 Connection to the game server lost

Game version and files

Code Meaning
E-0301 / E-0302 Outdated game version
E-0303 / E-0304 Corrupted or mismatched game data

Account and authorization

Code Meaning
E-0401 Steam account authentication failed
E-0403 / E-0404 Epic Online Services authorization problem
E-0405 Steam not responding or library blocked

Anti-cheat and other

Code Meaning
E-0501 / E-0502 Easy Anti-Cheat not running or blocked
E-0601 Keyboard and mouse not detected
E-0904 Unexpected internal error

No code, but the game won’t start? See game won’t load.

Sources and verification

Checked against the following sources on Nov 9, 2026. Early Access mechanics may change.

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