# Engine exit codes

Kameleo Engine returns specific numeric exit codes to signal termination reasons for automation scripts, CI pipelines, and monitoring agents. Codes are stable; new codes may be added over time. A value of 0 always indicates success (standard convention) and is omitted below.

# Exit codes

Code	Name (mnemonic)	Meaning	Typical remediation
100	AUTH_LOGIN_ERROR	Login error (temporary service or credential issue)	Retry after short delay; verify credentials and service status.
101	SUBSCRIPTION_INACTIVE	Subscription inactive or expired	Renew or reactivate subscription; verify billing status.
102	AUTH_INVALID_CREDENTIALS	Invalid or expired credentials	Reauthenticate the app.
103	THROTTLE_LIMIT	Request throttle limit reached	Back off (exponential); reduce parallel requests.
104	TEAM_SUBSCRIPTION_INACTIVE	Team subscription inactive	Team owner must reactivate; check team billing.
105	CONCURRENT_SESSION_LIMIT	Concurrent session limit reached	Close/stop other sessions or upgrade plan.
106	TEAM_USER_LIMIT	Team user limit exceeded	Remove unused members or upgrade plan.
107	FREE_TIER_ABUSE	Free tier abuse detected	Contact support if false positive; otherwise comply with terms.
108	VERSION_NOT_SUPPORTED	Version can't be used anymore	Upgrade to latest version to continue using the application.
109	DOCKER_NOT_ALLOWED	Subscription is missing Docker capability	Upgrade to a plan that includes Docker support.
110	REFRESH_TOKEN_EXPIRED	Refresh token has expired	Log in again to obtain a new refresh token.
111	PAT_INVALID	Personal access token is invalid	Generate a new personal access token at https://login.kameleo.io/PAT.
112	DEVICE_ACCOUNTLESS_LIMIT	Device has been used with a registered account	Use the registered account or contact support.
113	UNSUPPORTED_AUTH_METHOD	The email+password authentication is not supported	Use PAT instead, see: Configure
200	INTERNAL_UNKNOWN	Unknown internal error	Re-run with `Verbose=2`; file ticket with logs.
201	NETWORK_FAILURE	Network connection failed	Check connectivity, proxy/firewall rules; retry.
202	INSTANCE_ALREADY_RUNNING	Another instance already running	Stop existing instance or use different port/user directory.