使用产品：iserver 10.1.2 操作系统：winServer
使用浏览器访问SuperMap iServer Manager 时会出现访问不了的情况
查看iserver服务器后台提示如下错误信息：
19-Aug-2021 01:28:35.733 严重 [http-nio-28090-exec-228] org.apache.catalina.core.StandardWrapperValve.invoke 在路径为[/iserver]的上下文中，servlet[default]的Servlet.service()引发异常
java.lang.IllegalStateException: 响应提交后无法调用sendError()
19-Aug-2021 01:28:58.554 严重 [http-nio-28090-exec-168] org.apache.catalina.core.ApplicationContext.log An exception occurred writing the response entity
java.io.IOException: Template processing error The value you try to list is an extended_hash (wrapper: f.t.SimpleHash), thus you must specify two loop variables after the "as"; one for the key, and another for the value, like <#... as k, v>).
19-Aug-2021 01:29:22.891 严重 [http-nio-28090-exec-128] org.apache.catalina.core.ApplicationContext.log An exception occurred writing the response entity
java.io.IOException: Template processing error For "." left-hand operand: Expected a hash, but this has evaluated to a sequence (wrapper: f.t.SimpleSequence):
==> resource.content [in template "tileFeature_zh_CN.ftl" at line 27, column 74]
19-Aug-2021 01:29:23.735 严重 [http-nio-28090-exec-212] org.apache.catalina.core.ApplicationContext.log An exception occurred writing the response entity
java.io.IOException: Template processing error The following has evaluated to null or missing:
==> resource.content.vectorTileParameter [in template "tileFeature_zh_CN.ftl" at line 27, column 74]
在服务挂掉后，在命令框输入回车键，服务恢复正常。
