Migrating from activiti 6.0 to camunda 7

Hi we are trying to migrate from activiti 6.0 to camunda 7. The workflow seems to be running while using Camunda’s internal h2 database, but we are facing errors while setting it up to connect with our database, particularly a schema in our database.

This is the error that we are facing-

Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: There is already an object named 'ACT_GE_PROPERTY' in the database.
	at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:254) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1608) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.doExecuteStatement(SQLServerStatement.java:859) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.SQLServerStatement$StmtExecCmd.doExecute(SQLServerStatement.java:759) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7240) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2869) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:243) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:218) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.microsoft.sqlserver.jdbc.SQLServerStatement.execute(SQLServerStatement.java:739) ~[mssql-jdbc-7.0.0.jre8.jar:na]
	at com.mchange.v2.c3p0.impl.NewProxyStatement.execute(NewProxyStatement.java:75) ~[c3p0-0.9.5.4.jar:0.9.5.4]
	at org.camunda.bpm.engine.impl.db.sql.DbSqlSession.executeSchemaResource(DbSqlSession.java:692) ~[camunda-engine-7.13.0.jar:7.13.0]
	... 72 common frames omitted

@VanshikaD For activiti to camunda migration, please refer here:

We have seen this documentation but we are using activiti 6.0 and the documentations shared are for lower activiti versions.