Assertion !running failed in entry_guards_update_primary

Mar 06 09:42:14.067 [err] {BUG} tor_assertion_failed_(): Bug: entrynodes.c:1922: entry_guards_update_primary: Assertion !running failed; aborting. (on Tor 0.4.7.4-alpha-dev )
Mar 06 09:42:14.067 [err] {BUG} Bug: Tor 0.4.7.4-alpha-dev: Assertion !running failed in entry_guards_update_primary at entrynodes.c:1922: . (Stack trace not available) (on Tor 0.4.7.4-alpha-dev )

Does this mean my Guard is offline?

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