Timeout Exception while Renaming Tags

org.bibsonomy.common.exceptions.QueryTimeoutException: getTASByTagNames
        at org.bibsonomy.database.common.impl.DBSessionImpl.handleException(DBSessionImpl.java:359)
        at org.bibsonomy.database.common.impl.DBSessionImpl.handleException(DBSessionImpl.java:296)
        at org.bibsonomy.database.common.impl.DBSessionImpl.queryForList(DBSessionImpl.java:248)
        at org.bibsonomy.database.common.AbstractDatabaseManager.queryForList(AbstractDatabaseManager.java:63)
        at org.bibsonomy.database.common.AbstractDatabaseManager.queryForList(AbstractDatabaseManager.java:72)
        at org.bibsonomy.database.managers.TagDatabaseManager.updateTags(TagDatabaseManager.java:415)
        at org.bibsonomy.database.DBLogic.updateTags(DBLogic.java:1764)
        at org.bibsonomy.webapp.controller.actions.EditTagsPageViewController.workOnEditTagsHandler(EditTagsPageViewController.java:154)
        at org.bibsonomy.webapp.controller.actions.EditTagsPageViewController.workOn(EditTagsPageViewController.java:78)
        at org.bibsonomy.webapp.controller.actions.EditTagsPageViewController.workOn(EditTagsPageViewController.java:57)