Apache SVN commit fail

Dear Sir：

I have a serious problem when I commit data to SVN server ,
It always in *Committing transaction* have a unknow problem .
When commit run to *Committing transaction *, it always need to wait 10 min
and reply below error message：

Committing transaction...
svn: E175012: Commit failed (details follow):
svn: E175012: Connection timed out
svn: E200042: Additional errors:
svn: E175002: Unexpected server error 500 'Internal Server Error' on
'/svn/0_IT_test/Bill/!svn/txn/0-0'

May I know under what circumstances will this error result ?

I have tried many ways to exclude this error , but still has not been
solved this problem

can please help us trubleshooting this problem ?

SVN server is ubuntu 16.04
SVN version is 1.9.3

Thanks

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*Bill Huang* *黃靖翔*
Unizyx Holding Corporation
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Bill.Huang_at_unizyx.com.tw <bill.huang_at_unizyx.com.tw>
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