Container cannot start due to unwanted jar in WEB-INF/lib folder

We found this prefix in 747 webpages.
MapChildren (2)Typical messages (79)TraceDetailed Map
  1. org.apache.catalina.LifecycleException
    1.   at org.apache.catalina.core.ContainerBase.startInternal()
  1. LifecycleException

    LifecycleBase.start()
    Crashes:743
    Projects:0
    Web Pages:712
    Error Reports:0
    First:10 months ago
    Last:6 months ago
    preview
  2. LifecycleException

    LifecycleBase.start()
    Crashes:235
    Projects:0
    Web Pages:235
    Error Reports:0
    First:10 months ago
    Last:6 months ago
    preview
MessageNumber of crashes
Failed to start component [StandardServer[8005]]438
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]67
Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat42
Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]16
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]15
A child container failed during start15
Failed to start component [StandardServer[8006]]12
Failed to start component [StandardServer[-1]]9
Failed to start component [StandardServer[8005]]9
Failed to start component [StandardServer[8005]]8
  1. org.apache.catalina.LifecycleException
    1.   at org.apache.catalina.core.ContainerBase.startInternal()