possible to resume merge after "MySQL server has gone away"

Good evening to @ll,

I am attempting a merge from wbb 4.x to MyBB 1.8 using the merger. 

Whilst running the post module (some 400,000 posts), following error ocurred:


SQL Error:
    2006 - MySQL server has gone away
Query:
    INSERT INTO mybb_debuglogs (`type`,`message`,`timestamp`) VALUES (1,'File: /merge/resources/class_error.php Line: 52 Function: Log->error -> \r\nFile: /inc/db_mysqli.php Line: 597 Function: debugErrorHandler->error -> \r\nFile: /inc/db_mysqli.php Line: 337 Function: DB_MySQLi->error -> \r\nFile: /inc/db_mysqli.php Line: 370 Function: DB_MySQLi->query -> \r\nFile: /inc/db_mysqli.php Line: 831 Function: DB_MySQLi->write_query -> \r\nFile: /merge/resources/modules/posts.php Line: 87 Function: DB_MySQLi->insert_query -> \r\nFile: /merge/boards/wbb4/posts.php Line: 42 Function: Converter_Module_Posts->insert -> \r\nFile: /merge/index.php Line: 946 Function: WBB4_Converter_Module_Posts->import -> \r\n$type: 20 $message: Array $file: $line: 0',1512926445)

I am aware that this is a host issue and not an inherent bug in either MyBB or the Merge System.

Our server tends to be ... wonky and go away from time to time. Hoster (Host Europe) has recommended we upgrade to a package with more memory.

My (current) question: Once this error has ocurred, is there any way to resume the merge once server is running again or do I have to delete everything and start from scratch? (Which is what I did the last time)

Grateful for any pointers!

Best Regards,
niasse

PS: English is not my mother tongue. And all things webserver is what we in Germany call "Böhmische Dörfer" (reads: I am effing clueless)