PHP Fatal error: Uncaught Zend_Search_Lucene_Exception: Index is under processing now

I am receiving this error in my PHP log file.

PHP Fatal error: Uncaught Zend_Search_Lucene_Exception: Index is under processing now in /home/u544508717/domains/XXXX.COM/public_html/vendor/zf1/zend-search-lucene/library/Zend/Search/Lucene.php:280

Stack trace:

#0 /home/u544508717/domains/XXXX.COM/public_html/vendor/zf1/zend-search-lucene/library/Zend/Search/Lucene.php(529): Zend_Search_Lucene::getActualGeneration(Object(Zend_Search_Lucene_Storage_Directory_Filesystem))

#1 /home/u544508717/domains/XXXX.COM/public_html/modules/AOD_Index/AOD_Index.php(360): Zend_Search_Lucene->__construct(‘modules/AOD_Ind…’)

#2 /home/u544508717/domains/apeportal.com/public_html/modules/AOD_Index/AOD_Index.php(90): AOD_Index->getLuceneIndex()

#3 /home/u544508717/domains/apeportal.com/public_html/modules/Schedulers/_AddJobsHere.php(784): AOD_Index->optimise()

#4 /home/u544508717/domains/XXXX.COM/public_html/modules/Schedulers/_AddJobsHere.php(735): performLuceneIndexing()

#5 /home/u544508717/domains/XXXX.COM/public_html/modules/SchedulersJobs/SchedulersJob.php(540): a in /home/u544508717/domains/apeportal.com/public_html/vendor/zf1/zend-search-lucene/library/Zend/Search/Lucene.php on line 297

My suitecrm.log file is filled with this:
Tue May 31 23:35:02 2022 [34238][1][FATAL] Job 3e2d6cc0-8918-2600-6708-6296cfbee8db (Optimise AOD Index) failed in CRON run

Tue May 31 23:36:02 2022 [17075][1][ERROR] Index is under processing now

The schedule looks like this:
Perform Lucene Index running 2022-06-01 09:27 am 2022-06-01 09:28 am
Perform Lucene Index done 2022-06-01 09:23 am 2022-06-01 09:24 am
Perform Lucene Index done 2022-06-01 09:19 am 2022-06-01 09:20 am

Any help what is going on? Please

Do you find why this error is facing? I’m facing the same error.