I am not admitted to practice in Oregon and the general answers below may be different in your state. Consult with a local lawyer for answers under your state's laws.
You may have a remedy under federal law but it probably will not get the entry removed quickly. Ask the landlord at the new apartment you would like to rent if he would be willing to call your former landlord and have your former landlord confirm that you were not evicted.
For the long term: Credit Reporting Agencies (credit bureaus) and the companies that report information to them are governed by the Federal Credit Reporting Act.
You have various rights under the Act, including the right to demand that incorrect information be removed from the credit report. To start that process, you must sent a letter to the credit bureau challenging the incorrect information. Be sure to send the letter certified mail, return receipt requested and keep a copy of the letter for yourself.