You have, in principle, five years, but with an absolute limit of twenty years. The action for compensation arising from an offence or quasi-offence is time-barred after five years from the moment when you, the injured party, became aware of both the harm and the person liable for it (art. 106).
This starting point is important: the five-year period does not necessarily run from the day of the events, but from the day on which you knew who was responsible and what loss you had suffered.
There is, however, a ceiling: the action is time-barred in all cases after twenty years, counting from the moment the harm occurred (art. 106). Once that period has elapsed, even if you have only just discovered the perpetrator, the action is no longer admissible.
As for the content of your claim, the law provides that the compensable harm includes the actual loss suffered, the necessary expenses you had to or would have to incur to repair the consequences of the act, as well as the gains of which you are deprived within the normal measure (art. 98).
In practice: act without delay as soon as you know the perpetrator and the extent of your loss, in order to stay within the five-year time limit.
This is general legal information, not legal advice. For advice on your specific situation, consult a lawyer admitted to the Bar in Morocco.