这个问题可能是由于多次调用APScheduler定时器函数导致的。我们可以通过创建单例对象来解决。

代码示例：

from apscheduler.schedulers.background import BackgroundScheduler

class Scheduler:
    _instance = None
    _scheduler = None

    def __new__(cls):
        if cls._instance is None:
            cls._instance = super().__new__(cls)
            cls._scheduler = BackgroundScheduler()
        return cls._instance

    def __init__(self):
        pass

    def add_job(self, func, args, trigger):
        self._scheduler.add_job(func, trigger=trigger, args=args)

    def start(self):
        self._scheduler.start()

    def shutdown(self):
        self._scheduler.shutdown()

def task():
    print('running...')

if __name__ == '__main__':
    s = Scheduler()
    s.add_job(task, (), 'interval', id='my_job', minutes=1)
    s.start()