I did not know for 8 years that I was convicted, arrested on all my ...?

Article 28 of the Law on Executive Proceedings defines the procedure for sending executive proceedings documents.

In accordance with the above-mentioned article, copies of the executor's resolutions and other executive proceedings documents are brought to the attention of the parties by the executor, are sent to the addressees by ordinary postal delivery or are delivered by courier, except for resolutions on the opening of executive proceedings, on the return of the executive document to the debt collector , notifications to the debt collector about the return of the executive document without acceptance for execution, which are sent by registered mail. The debtor is considered to have been notified of the start of enforcement of decisions, if the resolution on the opening of enforcement proceedings is sent to him at the address specified in the enforcement document.

Executive proceedings documents are notified or sent to the addressees no later than the next working day from the date of their issuance.

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Therefore, if the executor did not properly inform you about the opening of enforcement proceedings, then this is a reason to challenge his actions and cancel the imposed arrests, since the procedure for imposing them was violated**.