We understand the frustrations that these problems might be causing you, and the administrators of InsaneJournal are constantly upgrading the performances of the free servers to meet the needs of the growing number of users.
When you encounter an error like 'Sorry, the page you were trying to view failed to load', this is normally due to a high volume of InsaneJournal users hitting the free servers during peak hours. Peak load times frequently occur between 8pm UTC (GMT) & 6am UTC (GMT).
If this is the case, wait 5 to 15 minutes before hitting the refresh button. Constantly hitting refresh contributes to the high load that the servers might already be experiencing. Another suggestion is to try accessing the servers during non-peak hours.