Error 500 during “Preload”

Hello,
after installing your plugin and during “Prebuild cache in progress” Ive got Error 500.
Error log is below, is that hosting problem?:

PHP Fatal error: Maximum execution time of 60 seconds exceeded in /hosting/www/example.cz/www/TEMP/wp-content/plugins/swift-performance-lite/modules/cache/cache.php on line 1387

and

Jul 03, 19:04:32

PHP Fatal error: Uncaught UnexpectedValueException: RecursiveDirectoryIterator::__construct(/hosting/www/example.cz/www/TEMP/wp-content/cache/swift-performance/www.example.cz/TEMP/en/product/paid-services/desktop): failed to open dir: No such file or directory in /hosting/www/example.cz/www/TEMP/wp-content/plugins/swift-performance-lite/modules/cache/cache.php:1386

Stack trace:
#0 [internal function]: RecursiveDirectoryIterator->__construct('/hosting/www/kv...', 0)
#1 [internal function]: RecursiveDirectoryIterator->getChildren()
#2 /hosting/www/example.cz/www/TEMP/wp-content/plugins/swift-performance-lite/modules/cache/cache.php(1386): FilterIterator->rewind()
#3 /hosting/www/example.cz/www/TEMP/wp-content/plugins/swift-performance-lite/modules/cache/cache.php(1467): Swift_Performance_Cache::locate_cache_file('https://www.kve...')
#4 /hosting/www/example.cz/www/TEMP/wp-content/plugins/swift-performance-lite/includes/cache-status/cache-status.php(95): Swift_Performance_Cache::get_cach in /hosting/www/example.cz/www/TEMP/wp-content/plugins/swift-performance-lite/modules/cache/cache.php on line 1386