"Oops" Error w/ No Dashboard

I recently moved hosts, while most everything on my sites works on the new VPS Piwik seems to have broke. MY dashboard is a garbled mess and I get the following instead of the page I expect:

Looking into my server error log I get the following and I am unsure about how to interpret it.


#9  require_once(...) called at [/home/domain/public_html/analytics/index.php:47], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday
#8  Piwik\\FrontController->dispatch(...) called at [/home/domain/public_html/analytics/core/dispatch.php:34], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday
#7  Piwik\\FrontController->doDispatch(...) called at [/home/domain/public_html/analytics/core/FrontController.php:84], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday
#6  call_user_func_array(...) called at [/home/domain/public_html/analytics/core/FrontController.php:531], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday
#4  Piwik\\Plugins\\Proxy\\Controller->serveJsFile(...) called at [/home/domain/public_html/analytics/plugins/Proxy/Controller.php:49], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday
#3  Piwik\\ProxyHttp::serverStaticFile(...) called at [/home/domain/public_html/analytics/plugins/Proxy/Controller.php:69], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday
#2  _readfile(...) called at [/home/domain/public_html/analytics/core/ProxyHttp.php:160], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday
#1  ob_flush(...) called at [/home/domain/public_html/analytics/libs/upgradephp/upgrade.php:636], referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday

Notice: ob_flush() [ref.outcontrol]: failed to flush buffer. No buffer to flush in /home/domain/public_html/analytics/libs/upgradephp/upgrade.php on line 636, referer: http://domain.com/analytics/index.php?module=CoreHome&action=index&idSite=3&period=day&date=yesterday

Entire cycle of errors repeats with each page load attempt.

Thanks for the report, this bug should be fixed in: Notice: ob_flush() [ref.outcontrol]: failed to flush buffer. No buffer to flush · Issue #6845 · matomo-org/matomo · GitHub

if you apply the diff, do you see Piwik work as expected?