JAS log with error

Hi, this jas log has shown some errors recently.  Even though server is restarted, it still the same.  May i know what could be the root cause of this ?

B7334 sp23 - websphere 6 :

2013-10-07 23:00:27.376 [server.startup : 0] LIB     : ***** File [C:\WebSphere\AppServer\installedApps\MYHQJDE001Node02\EA_JS_82.ear\webclient.war\logs\jas.log] opened
2013-10-07 23:00:27.376 [server.startup : 0] LIB     : SysInfo: Windows 2003 5.2 x86 JavaInfo: IBM Corporation 1.4.2 (J2RE 1.4.2 IBM Windows 32 build cn142-20050609 (JIT enabled: jitc))
2013-10-07 23:00:27.376 [server.startup : 0] JAS     : OneWorld JAS startup initiated
2013-10-07 23:00:27.552 [server.startup : 0] JAS     : JDBC Driver <com.microsoft.sqlserver.jdbc.SQLServerDriver> is registered. Major Version <1> Minor Version <2>