@CaitlinA this is because those build jobs are still in queue. Free accounts have 1 concurrent job so they will build one-by-one. You can delete some builds if you think that only latest is enough. Sorry for the inconvenience.
Johan, should be fixed now. Please restart any build to unfreeze the queue. Note that you might decide to delete some non-important build (if any) to dissolve your queue faster. Also note that queue is common for account to if you do not see running build under one project (after you restart it) -- check under another.