Error when trying to delete an account

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#1

I have a very frustrating error that when I tried to delete an account I get the following:

Fatal error: Uncaught Error: Call to a member function readInt() on null in /home/xxx/public_html/crm/modules/AOD_Index/Lib/Zend/Search/Lucene.php:264 Stack trace: #0 /home/xxx/public_html/crm/modules/AOD_Index/Lib/Zend/Search/Lucene.php(529): Zend_Search_Lucene::getActualGeneration(Object(Zend_Search_Lucene_Storage_Directory_Filesystem)) #1 /home/xxx/public_html/crm/modules/AOD_Index/Lib/Zend/Search/Lucene.php(211): Zend_Search_Lucene->__construct(‘modules/AOD_Ind…’, true) #2 /home/xxx/public_html/crm/modules/AOD_Index/AOD_Index.php(344): Zend_Search_Lucene::create(‘modules/AOD_Ind…’) #3 /home/xxx/public_html/crm/modules/AOD_Index/AOD_Index.php(330): AOD_Index->getLuceneIndex() #4 /home/xxx/public_html/crm/modules/AOD_Index/AOD_LogicHooks.php(51): AOD_Index->remove(‘Accounts’, ‘835’) #5 /home/xxx/public_html/crm/include/utils/LogicHook.php(262): AOD_LogicHooks->saveModuleDelete(Object(Account), ‘after_delete’, Array) #6 /home/xxx/public_html/crm/include/utils/LogicHook.php(204) in /home/xxx/public_html/crm/modules/AOD_Index/Lib/Zend/Search/Lucene.php on line 264

Can anybody point me in the right direction to try and resolve this issue, please?

#2

I also get the same message if I try to Merge accounts.

In the php_errorlog I am getting the following error:
[08-Aug-2018 04:33:10 CST6CDT] PHP Fatal error: Uncaught Error: Call to a member function readInt() on null in /home/xxx/public_html/crm/modules/AOD_Index/Lib/Zend/Search/Lucene.php:264

Still, knowing this is no help as I don’t know what to do with the information, Any assistance would be gratefully received.

Regards

John

PS. I am running suiteCRM Version 7.10.7 on Sitegroung hosting