Process and Instance are not visible on Operate Dashboard 8.1.6

We’ve currently upgrade our zeebe cluster version from 1.1.5 to 8.1.6.
Now the process and instance are not visible on Operate dashboard. I went thr the operate logs and can see import error.
As I’m new to zeebe, need inputs of how can I overcome this issue.
Current version deployed are:
Operate: 8.1.6
ElasticSearch: 7.17.1
zbctl 8.1.5

Since, zbctl is running on 8.1.5, I cannot understand by in error its pointing to zeebe 1.1 version.
Also all components are deployed via helm.

"Import is not possible for Zeebe version: 1.1
io.camunda.operate.exceptions.OperateRuntimeException: Import is not possible for Zeebe version: 1.1
** at io.camunda.operate.zeebeimport.ImportBatchProcessorFactory.getImportBatchProcessor( ~[operate-importer-8.1.6.jar!/:?]**
** at io.camunda.operate.zeebeimport.ImportJob.processOneIndexBatch( ~[operate-importer-8.1.6.jar!/:?]**
** at ~[operate-importer-8.1.6.jar!/:?]**
** at io.camunda.operate.zeebeimport.RecordsReader.lambda$executeJob$3( ~[operate-importer-8.1.6.jar!/:?]**
** at Source) ~[?:?]**
** at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:?]**
** at java.util.concurrent.ThreadPoolExecutor$ Source) ~[?:?]**
** at Source) ~[?:?]"**